7457222448 has 320 divisors, whose sum is σ = 25698355200. Its totient is φ = 2045399040.

The previous prime is 7457222441. The next prime is 7457222471. The reversal of 7457222448 is 8442227547.

7457222448 is a `hidden beast` number, since 74 + 572 + 2 + 2 + 4 + 4 + 8 = 666.

It is a super-3 number, since 3×7457222448³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (7457222441) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1811913 + ... + 1816023.

It is an arithmetic number, because the mean of its divisors is an integer number (80307360).

Almost surely, 2^7457222448 is an apocalyptic number.

7457222448 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7457222448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12849177600).

7457222448 is an abundant number, since it is smaller than the sum of its proper divisors (18241132752).

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

7457222448 is a wasteful number, since it uses less digits than its factorization.

7457222448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4177 (or 4165 counting only the distinct ones).

The product of its digits is 1003520, while the sum is 45.

The square root of 7457222448 is about 86355.2108908316. The cubic root of 7457222448 is about 1953.7052014293.

It can be divided in two parts, 74572 and 22448, that added together give a triangular number (97020 = T₄₄₀).

The spelling of 7457222448 in words is "seven billion, four hundred fifty-seven million, two hundred twenty-two thousand, four hundred forty-eight".