74815630 has 8 divisors (see below), whose sum is σ = 134668152. Its totient is φ = 29926248.

The previous prime is 74815613. The next prime is 74815661. The reversal of 74815630 is 3651847.

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

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 3 ways as a sum of consecutive naturals, for example, 3740772 + ... + 3740791.

It is an arithmetic number, because the mean of its divisors is an integer number (16833519).

Almost surely, 2^74815630 is an apocalyptic number.

74815630 is a deficient number, since it is larger than the sum of its proper divisors (59852522).

74815630 is a wasteful number, since it uses less digits than its factorization.

74815630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7481570.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 74815630 is about 8649.6028810576. The cubic root of 74815630 is about 421.3704853665.

The spelling of 74815630 in words is "seventy-four million, eight hundred fifteen thousand, six hundred thirty".