7422625944 has 128 divisors (see below), whose sum is σ = 21669120000. Its totient is φ = 2351244672.

The previous prime is 7422625853. The next prime is 7422625961. The reversal of 7422625944 is 4495262247.

It is a super-2 number, since 2×7422625944² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7422625944.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 332857 + ... + 354455.

It is an arithmetic number, because the mean of its divisors is an integer number (169290000).

Almost surely, 2^7422625944 is an apocalyptic number.

7422625944 is a gapful number since it is divisible by the number (74) 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 7422625944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10834560000).

7422625944 is an abundant number, since it is smaller than the sum of its proper divisors (14246494056).

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

7422625944 is a wasteful number, since it uses less digits than its factorization.

7422625944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21694 (or 21684 counting only the distinct ones).

The product of its digits is 967680, while the sum is 45.

The square root of 7422625944 is about 86154.6629266228. The cubic root of 7422625944 is about 1950.6792237404.

The spelling of 7422625944 in words is "seven billion, four hundred twenty-two million, six hundred twenty-five thousand, nine hundred forty-four".