74238516 has 36 divisors (see below), whose sum is σ = 204719424. Its totient is φ = 22496400.

The previous prime is 74238509. The next prime is 74238517. The reversal of 74238516 is 61583247.

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

It is a super-2 number, since 2×74238516² = 11022714515764512, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74238517) 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, 93340 + ... + 94131.

Almost surely, 2^74238516 is an apocalyptic number.

It is an amenable number.

74238516 is an abundant number, since it is smaller than the sum of its proper divisors (130480908).

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

74238516 is a wasteful number, since it uses less digits than its factorization.

74238516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187492 (or 187487 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 74238516 is about 8616.1775747718. The cubic root of 74238516 is about 420.2842293769.

The spelling of 74238516 in words is "seventy-four million, two hundred thirty-eight thousand, five hundred sixteen".