74939800 has 192 divisors, whose sum is σ = 207799200. Its totient is φ = 24883200.

The previous prime is 74939783. The next prime is 74939801. The reversal of 74939800 is 893947.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74939801) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1827780 + ... + 1827820.

Almost surely, 2^74939800 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 74939800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103899600).

74939800 is an abundant number, since it is smaller than the sum of its proper divisors (132859400).

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

74939800 is a wasteful number, since it uses less digits than its factorization.

74939800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126 (or 117 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 74939800 is about 8656.7776914970. Note that the first 3 decimals coincide. The cubic root of 74939800 is about 421.6034699008.

The spelling of 74939800 in words is "seventy-four million, nine hundred thirty-nine thousand, eight hundred".