7440423732 has 72 divisors (see below), whose sum is σ = 22429120896. Its totient is φ = 2033406144.

The previous prime is 7440423707. The next prime is 7440423733. The reversal of 7440423732 is 2373240447.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7440423733) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 636063 + ... + 647654.

It is an arithmetic number, because the mean of its divisors is an integer number (311515568).

Almost surely, 2^7440423732 is an apocalyptic number.

It is an amenable number.

7440423732 is an abundant number, since it is smaller than the sum of its proper divisors (14988697164).

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

7440423732 is a wasteful number, since it uses less digits than its factorization.

7440423732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1283757 (or 1283752 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 36.

The square root of 7440423732 is about 86257.8908390415. The cubic root of 7440423732 is about 1952.2370759962.

The spelling of 7440423732 in words is "seven billion, four hundred forty million, four hundred twenty-three thousand, seven hundred thirty-two".