74906772 has 24 divisors (see below), whose sum is σ = 175360416. Its totient is φ = 24886368.

The previous prime is 74906749. The next prime is 74906779. The reversal of 74906772 is 27760947.

It is a super-2 number, since 2×74906772² = 11222048982919968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74906779) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6483 + ... + 13850.

It is an arithmetic number, because the mean of its divisors is an integer number (7306684).

Almost surely, 2^74906772 is an apocalyptic number.

It is an amenable number.

74906772 is an abundant number, since it is smaller than the sum of its proper divisors (100453644).

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

74906772 is a wasteful number, since it uses less digits than its factorization.

74906772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20647 (or 20645 counting only the distinct ones).

The product of its (nonzero) digits is 148176, while the sum is 42.

The square root of 74906772 is about 8654.8698430421. The cubic root of 74906772 is about 421.5415234425.

The spelling of 74906772 in words is "seventy-four million, nine hundred six thousand, seven hundred seventy-two".