74240440032 has 48 divisors (see below), whose sum is σ = 212597626752. Its totient is φ = 22497102720.

The previous prime is 74240439967. The next prime is 74240440049. The reversal of 74240440032 is 23004404247.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×74240440032² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35150668 + ... + 35152779.

It is an arithmetic number, because the mean of its divisors is an integer number (4429117224).

Almost surely, 2^74240440032 is an apocalyptic number.

It is an amenable number.

74240440032 is an abundant number, since it is smaller than the sum of its proper divisors (138357186720).

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

74240440032 is a wasteful number, since it uses less digits than its factorization.

74240440032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70303471 (or 70303463 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 30.

Adding to 74240440032 its reverse (23004404247), we get a palindrome (97244844279).

The spelling of 74240440032 in words is "seventy-four billion, two hundred forty million, four hundred forty thousand, thirty-two".