74705972 has 48 divisors (see below), whose sum is σ = 149022720. Its totient is φ = 32457600.

The previous prime is 74705971. The next prime is 74705999. The reversal of 74705972 is 27950747.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74705971) 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, 161822 + ... + 162282.

It is an arithmetic number, because the mean of its divisors is an integer number (3104640).

Almost surely, 2^74705972 is an apocalyptic number.

It is an amenable number.

74705972 is a deficient number, since it is larger than the sum of its proper divisors (74316748).

74705972 is a wasteful number, since it uses less digits than its factorization.

74705972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632 (or 630 counting only the distinct ones).

The product of its (nonzero) digits is 123480, while the sum is 41.

The square root of 74705972 is about 8643.2616528716. The cubic root of 74705972 is about 421.1645157571.

The spelling of 74705972 in words is "seventy-four million, seven hundred five thousand, nine hundred seventy-two".