7456222440 has 192 divisors, whose sum is σ = 27009028800. Its totient is φ = 1772845056.

The previous prime is 7456222439. The next prime is 7456222441. The reversal of 7456222440 is 442226547.

7456222440 is a `hidden beast` number, since 7 + 4 + 5 + 622 + 24 + 4 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (7456222439) and next prime (7456222441).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 7456222395 and 7456222404.

It is not an unprimeable number, because it can be changed into a prime (7456222441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 84219 + ... + 148341.

It is an arithmetic number, because the mean of its divisors is an integer number (140672025).

Almost surely, 2^7456222440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7456222440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13504514400).

7456222440 is an abundant number, since it is smaller than the sum of its proper divisors (19552806360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7456222440 is a wasteful number, since it uses less digits than its factorization.

7456222440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64176 (or 64169 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 36.

The square root of 7456222440 is about 86349.4206118373. The cubic root of 7456222440 is about 1953.6178673858.

Adding to 7456222440 its reverse (442226547), we get a palindrome (7898448987).

The spelling of 7456222440 in words is "seven billion, four hundred fifty-six million, two hundred twenty-two thousand, four hundred forty".