74028816 has 75 divisors (see below), whose sum is σ = 215161111. Its totient is φ = 24573024.

The previous prime is 74028811. The next prime is 74028827. The reversal of 74028816 is 61882047.

The square root of 74028816 is 8604.

It is a perfect power (a square), and thus also a powerful number.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74028811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 309625 + ... + 309863.

Almost surely, 2^74028816 is an apocalyptic number.

74028816 is the 8604-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74028816

74028816 is an abundant number, since it is smaller than the sum of its proper divisors (141132295).

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

74028816 is an equidigital number, since it uses as much as digits as its factorization.

74028816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498 (or 244 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The cubic root of 74028816 is about 419.8881334724. Note that the first 3 decimals are identical.

Multiplying 74028816 by its sum of digits (36), we get a square (2665037376 = 51624²).

74028816 divided by its sum of digits (36) gives a square (2056356 = 1434²).

The spelling of 74028816 in words is "seventy-four million, twenty-eight thousand, eight hundred sixteen".