74469915 has 32 divisors (see below), whose sum is σ = 142578240. Its totient is φ = 36661248.

The previous prime is 74469893. The next prime is 74469917. The reversal of 74469915 is 51996447.

It is not a de Polignac number, because 74469915 - 2⁹ = 74469403 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (74469917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19462 + ... + 22971.

It is an arithmetic number, because the mean of its divisors is an integer number (4455570).

Almost surely, 2^74469915 is an apocalyptic number.

74469915 is a deficient number, since it is larger than the sum of its proper divisors (68108325).

74469915 is a wasteful number, since it uses less digits than its factorization.

74469915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42460 (or 42454 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 74469915 is about 8629.5952975791. The cubic root of 74469915 is about 420.7204471476.

The spelling of 74469915 in words is "seventy-four million, four hundred sixty-nine thousand, nine hundred fifteen".