74736478 has 8 divisors (see below), whose sum is σ = 112792968. Its totient is φ = 37138824.

The previous prime is 74736469. The next prime is 74736479. The reversal of 74736478 is 87463747.

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

It is a super-2 number, since 2×74736478² = 11171082287688968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74736479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114301 + ... + 114952.

It is an arithmetic number, because the mean of its divisors is an integer number (14099121).

Almost surely, 2^74736478 is an apocalyptic number.

74736478 is a deficient number, since it is larger than the sum of its proper divisors (38056490).

74736478 is a wasteful number, since it uses less digits than its factorization.

74736478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229418.

The product of its digits is 790272, while the sum is 46.

The square root of 74736478 is about 8645.0262000760. The cubic root of 74736478 is about 421.2218351206.

The spelling of 74736478 in words is "seventy-four million, seven hundred thirty-six thousand, four hundred seventy-eight".