74164020 has 96 divisors (see below), whose sum is σ = 245548800. Its totient is φ = 16364544.

The previous prime is 74164019. The next prime is 74164061. The reversal of 74164020 is 2046147.

It is a congruent number.

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, 9136 + ... + 15224.

It is an arithmetic number, because the mean of its divisors is an integer number (2557800).

Almost surely, 2^74164020 is an apocalyptic number.

74164020 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 74164020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122774400).

74164020 is an abundant number, since it is smaller than the sum of its proper divisors (171384780).

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

74164020 is a wasteful number, since it uses less digits than its factorization.

74164020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6137 (or 6135 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 74164020 is about 8611.8534590412. The cubic root of 74164020 is about 420.1436016894.

The spelling of 74164020 in words is "seventy-four million, one hundred sixty-four thousand, twenty".