74404425 has 24 divisors (see below), whose sum is σ = 128366784. Its totient is φ = 37956160.

The previous prime is 74404423. The next prime is 74404441. The reversal of 74404425 is 52440447.

It is not a de Polignac number, because 74404425 - 2¹ = 74404423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 74404392 and 74404401.

It is not an unprimeable number, because it can be changed into a prime (74404423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19842 + ... + 23291.

It is an arithmetic number, because the mean of its divisors is an integer number (5348616).

Almost surely, 2^74404425 is an apocalyptic number.

74404425 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

74404425 is a deficient number, since it is larger than the sum of its proper divisors (53962359).

74404425 is a wasteful number, since it uses less digits than its factorization.

74404425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43169 (or 43164 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 30.

The square root of 74404425 is about 8625.7999629020. The cubic root of 74404425 is about 420.5970816119.

It can be divided in two parts, 7440442 and 5, that added together give a palindrome (7440447).

The spelling of 74404425 in words is "seventy-four million, four hundred four thousand, four hundred twenty-five".