74210816 has 40 divisors (see below), whose sum is σ = 149243424. Its totient is φ = 36864000.

The previous prime is 74210809. The next prime is 74210821. The reversal of 74210816 is 61801247.

It is a super-2 number, since 2×74210816² = 11014490422771712, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98441 + ... + 99191.

Almost surely, 2^74210816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74210816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74621712).

74210816 is an abundant number, since it is smaller than the sum of its proper divisors (75032608).

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

74210816 is an equidigital number, since it uses as much as digits as its factorization.

74210816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 962 (or 946 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 74210816 is about 8614.5699834641. The cubic root of 74210816 is about 420.2319504880.

The spelling of 74210816 in words is "seventy-four million, two hundred ten thousand, eight hundred sixteen".