74792138 has 8 divisors (see below), whose sum is σ = 112404288. Its totient is φ = 37324044.

The previous prime is 74792099. The next prime is 74792149. The reversal of 74792138 is 83129747.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×74792138² = 11187727813222088, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 74792095 and 74792104.

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, 34706 + ... + 36797.

It is an arithmetic number, because the mean of its divisors is an integer number (14050536).

Almost surely, 2^74792138 is an apocalyptic number.

74792138 is a deficient number, since it is larger than the sum of its proper divisors (37612150).

74792138 is a wasteful number, since it uses less digits than its factorization.

74792138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72028.

The product of its digits is 84672, while the sum is 41.

The square root of 74792138 is about 8648.2447930201. The cubic root of 74792138 is about 421.3263775078.

The spelling of 74792138 in words is "seventy-four million, seven hundred ninety-two thousand, one hundred thirty-eight".