74803820 has 96 divisors (see below), whose sum is σ = 201858048. Its totient is φ = 22632192.

The previous prime is 74803819. The next prime is 74803867. The reversal of 74803820 is 2830847.

It is a super-2 number, since 2×74803820² = 11191222973184800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40967 + ... + 42753.

It is an arithmetic number, because the mean of its divisors is an integer number (2102688).

Almost surely, 2^74803820 is an apocalyptic number.

74803820 is a gapful number since it is divisible by the number (70) 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 74803820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100929024).

74803820 is an abundant number, since it is smaller than the sum of its proper divisors (127054228).

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

74803820 is a wasteful number, since it uses less digits than its factorization.

74803820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1839 (or 1837 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 74803820 is about 8648.9201638124. The cubic root of 74803820 is about 421.3483124270.

The spelling of 74803820 in words is "seventy-four million, eight hundred three thousand, eight hundred twenty".