74773872 has 60 divisors (see below), whose sum is σ = 209998464. Its totient is φ = 24837120.

The previous prime is 74773859. The next prime is 74773879. The reversal of 74773872 is 27837747.

It is a super-2 number, since 2×74773872² = 11182263867744768, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74773879) 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, 50097 + ... + 51567.

Almost surely, 2^74773872 is an apocalyptic number.

74773872 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74773872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104999232).

74773872 is an abundant number, since it is smaller than the sum of its proper divisors (135224592).

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

74773872 is a wasteful number, since it uses less digits than its factorization.

74773872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1838 (or 1829 counting only the distinct ones).

The product of its digits is 460992, while the sum is 45.

The square root of 74773872 is about 8647.1886760958. The cubic root of 74773872 is about 421.2920754434.

The spelling of 74773872 in words is "seventy-four million, seven hundred seventy-three thousand, eight hundred seventy-two".