74767272 has 32 divisors (see below), whose sum is σ = 191479680. Its totient is φ = 24314240.

The previous prime is 74767267. The next prime is 74767283. The reversal of 74767272 is 27276747.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is an alternating number because its digits alternate between odd and even.

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, 37008 + ... + 38975.

It is an arithmetic number, because the mean of its divisors is an integer number (5983740).

Almost surely, 2^74767272 is an apocalyptic number.

It is an amenable number.

74767272 is an abundant number, since it is smaller than the sum of its proper divisors (116712408).

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

74767272 is a wasteful number, since it uses less digits than its factorization.

74767272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76033 (or 76029 counting only the distinct ones).

The product of its digits is 230496, while the sum is 42.

The square root of 74767272 is about 8646.8070407521. The cubic root of 74767272 is about 421.2796798056.

The spelling of 74767272 in words is "seventy-four million, seven hundred sixty-seven thousand, two hundred seventy-two".