74272772 has 12 divisors (see below), whose sum is σ = 148545600. Its totient is φ = 31831176.

The previous prime is 74272763. The next prime is 74272787. The reversal of 74272772 is 27727247.

74272772 is an admirable number.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1326272 + ... + 1326327.

It is an arithmetic number, because the mean of its divisors is an integer number (12378800).

Almost surely, 2^74272772 is an apocalyptic number.

It is an amenable number.

74272772 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

74272772 is a wasteful number, since it uses less digits than its factorization.

74272772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2652610 (or 2652608 counting only the distinct ones).

The product of its digits is 76832, while the sum is 38.

The square root of 74272772 is about 8618.1652339695. The cubic root of 74272772 is about 420.3488635832.

The spelling of 74272772 in words is "seventy-four million, two hundred seventy-two thousand, seven hundred seventy-two".