74670438 has 16 divisors (see below), whose sum is σ = 149788080. Its totient is φ = 24815616.

The previous prime is 74670373. The next prime is 74670457. The reversal of 74670438 is 83407647.

It is a happy number.

It is a super-2 number, since 2×74670438² = 11151348622223688, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 74670396 and 74670405.

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 7 ways as a sum of consecutive naturals, for example, 16443 + ... + 20486.

It is an arithmetic number, because the mean of its divisors is an integer number (9361755).

Almost surely, 2^74670438 is an apocalyptic number.

74670438 is an abundant number, since it is smaller than the sum of its proper divisors (75117642).

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

74670438 is a wasteful number, since it uses less digits than its factorization.

74670438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37271.

The product of its (nonzero) digits is 112896, while the sum is 39.

The square root of 74670438 is about 8641.2058186343. The cubic root of 74670438 is about 421.0977293367.

The spelling of 74670438 in words is "seventy-four million, six hundred seventy thousand, four hundred thirty-eight".