74291868 has 36 divisors (see below), whose sum is σ = 214621680. Its totient is φ = 21226176.

The previous prime is 74291813. The next prime is 74291869. The reversal of 74291868 is 86819247.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74291869) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 147153 + ... + 147656.

Almost surely, 2^74291868 is an apocalyptic number.

It is an amenable number.

74291868 is an abundant number, since it is smaller than the sum of its proper divisors (140329812).

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

74291868 is a wasteful number, since it uses less digits than its factorization.

74291868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294826 (or 294821 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 74291868 is about 8619.2730551944. The cubic root of 74291868 is about 420.3848852811.

The spelling of 74291868 in words is "seventy-four million, two hundred ninety-one thousand, eight hundred sixty-eight".