74274272 has 24 divisors (see below), whose sum is σ = 146849472. Its totient is φ = 36979200.

The previous prime is 74274251. The next prime is 74274301. The reversal of 74274272 is 27247247.

It is a super-2 number, since 2×74274272² = 11033334962259968, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2897 + ... + 12527.

It is an arithmetic number, because the mean of its divisors is an integer number (6118728).

Almost surely, 2^74274272 is an apocalyptic number.

It is an amenable number.

74274272 is a deficient number, since it is larger than the sum of its proper divisors (72575200).

74274272 is a wasteful number, since it uses less digits than its factorization.

74274272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9882 (or 9874 counting only the distinct ones).

The product of its digits is 43904, while the sum is 35.

The square root of 74274272 is about 8618.2522590140. The cubic root of 74274272 is about 420.3516933284.

The spelling of 74274272 in words is "seventy-four million, two hundred seventy-four thousand, two hundred seventy-two".