74211816 has 32 divisors (see below), whose sum is σ = 212034240. Its totient is φ = 21203328.

The previous prime is 74211791. The next prime is 74211821. The reversal of 74211816 is 61811247.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220701 + ... + 221036.

It is an arithmetic number, because the mean of its divisors is an integer number (6626070).

Almost surely, 2^74211816 is an apocalyptic number.

It is an amenable number.

74211816 is an abundant number, since it is smaller than the sum of its proper divisors (137822424).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74211816 is a wasteful number, since it uses less digits than its factorization.

74211816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441753 (or 441749 counting only the distinct ones).

The product of its digits is 2688, while the sum is 30.

The square root of 74211816 is about 8614.6280244709. The cubic root of 74211816 is about 420.2338380388.

The spelling of 74211816 in words is "seventy-four million, two hundred eleven thousand, eight hundred sixteen".