74189925 has 30 divisors (see below), whose sum is σ = 137429138. Its totient is φ = 39566880.

The previous prime is 74189903. The next prime is 74189953. The reversal of 74189925 is 52998147.

It can be written as a sum of positive squares in 3 ways, for example, as 2313441 + 71876484 = 1521^2 + 8478^2 .

It is not a de Polignac number, because 74189925 - 2⁵ = 74189893 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 16294 + ... + 20343.

Almost surely, 2^74189925 is an apocalyptic number.

74189925 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

74189925 is a deficient number, since it is larger than the sum of its proper divisors (63239213).

74189925 is a wasteful number, since it uses less digits than its factorization.

74189925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36659 (or 36645 counting only the distinct ones).

The product of its digits is 181440, while the sum is 45.

The square root of 74189925 is about 8613.3573593576. The cubic root of 74189925 is about 420.1925137855.

The spelling of 74189925 in words is "seventy-four million, one hundred eighty-nine thousand, nine hundred twenty-five".