74878442 has 8 divisors (see below), whose sum is σ = 112355616. Its totient is φ = 37426572.

The previous prime is 74878439. The next prime is 74878457. The reversal of 74878442 is 24487847.

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

It is a junction number, because it is equal to n+sod(n) for n = 74878393 and 74878402.

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, 5483 + ... + 13409.

It is an arithmetic number, because the mean of its divisors is an integer number (14044452).

Almost surely, 2^74878442 is an apocalyptic number.

74878442 is a deficient number, since it is larger than the sum of its proper divisors (37477174).

74878442 is a wasteful number, since it uses less digits than its factorization.

74878442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12652.

The product of its digits is 401408, while the sum is 44.

The square root of 74878442 is about 8653.2330374260. The cubic root of 74878442 is about 421.4883739213.

The spelling of 74878442 in words is "seventy-four million, eight hundred seventy-eight thousand, four hundred forty-two".