74262816 has 36 divisors (see below), whose sum is σ = 211185702. Its totient is φ = 24754176.

The previous prime is 74262781. The next prime is 74262821. The reversal of 74262816 is 61826247.

It can be written as a sum of positive squares in only one way, i.e., 73616400 + 646416 = 8580^2 + 804^2 .

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

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

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 128641 + ... + 129216.

Almost surely, 2^74262816 is an apocalyptic number.

It is an amenable number.

74262816 is an abundant number, since it is smaller than the sum of its proper divisors (136922886).

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

74262816 is a wasteful number, since it uses less digits than its factorization.

74262816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257873 (or 257862 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 74262816 is about 8617.5875974660. The cubic root of 74262816 is about 420.3300806556.

It can be divided in two parts, 74262 and 816, that added together give a triangular number (75078 = T₃₈₇).

The spelling of 74262816 in words is "seventy-four million, two hundred sixty-two thousand, eight hundred sixteen".