74661394 has 8 divisors (see below), whose sum is σ = 112194828. Its totient is φ = 37263120.

The previous prime is 74661371. The next prime is 74661401. The reversal of 74661394 is 49316647.

It can be written as a sum of positive squares in 2 ways, for example, as 59490369 + 15171025 = 7713^2 + 3895^2 .

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

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 3 ways as a sum of consecutive naturals, for example, 32397 + ... + 34624.

Almost surely, 2^74661394 is an apocalyptic number.

74661394 is a deficient number, since it is larger than the sum of its proper divisors (37533434).

74661394 is a wasteful number, since it uses less digits than its factorization.

74661394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67580.

The product of its digits is 108864, while the sum is 40.

The square root of 74661394 is about 8640.6824961921. The cubic root of 74661394 is about 421.0807276882.

The spelling of 74661394 in words is "seventy-four million, six hundred sixty-one thousand, three hundred ninety-four".