7422805440 has 112 divisors (see below), whose sum is σ = 26186038560. Its totient is φ = 1979412480.

The previous prime is 7422805427. The next prime is 7422805441. The reversal of 7422805440 is 445082247.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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 = 7422805395 and 7422805404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7422805441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 420921 + ... + 438200.

Almost surely, 2^7422805440 is an apocalyptic number.

It is an amenable number.

7422805440 is an abundant number, since it is smaller than the sum of its proper divisors (18763233120).

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

7422805440 is a wasteful number, since it uses less digits than its factorization.

7422805440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 859147 (or 859131 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 36.

The square root of 7422805440 is about 86155.7046283065. The cubic root of 7422805440 is about 1950.6949475691.

Adding to 7422805440 its reverse (445082247), we get a palindrome (7867887687).

The spelling of 7422805440 in words is "seven billion, four hundred twenty-two million, eight hundred five thousand, four hundred forty".