74972818 has 8 divisors (see below), whose sum is σ = 116087040. Its totient is φ = 36277140.

The previous prime is 74972783. The next prime is 74972819. The reversal of 74972818 is 81827947.

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

It is a super-2 number, since 2×74972818² = 11241846877722248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (74972819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 604558 + ... + 604681.

It is an arithmetic number, because the mean of its divisors is an integer number (14510880).

Almost surely, 2^74972818 is an apocalyptic number.

74972818 is a deficient number, since it is larger than the sum of its proper divisors (41114222).

74972818 is a wasteful number, since it uses less digits than its factorization.

74972818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1209272.

The product of its digits is 225792, while the sum is 46.

The square root of 74972818 is about 8658.6845421230. The cubic root of 74972818 is about 421.6653794132.

The spelling of 74972818 in words is "seventy-four million, nine hundred seventy-two thousand, eight hundred eighteen".