74690432 has 16 divisors (see below), whose sum is σ = 148797600. Its totient is φ = 37345152.

The previous prime is 74690423. The next prime is 74690437. The reversal of 74690432 is 23409647.

It is a tau number, because it is divible by the number of its divisors (16).

It is a junction number, because it is equal to n+sod(n) for n = 74690392 and 74690401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74690437) 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 as a sum of consecutive naturals, namely, 291632 + ... + 291887.

It is an arithmetic number, because the mean of its divisors is an integer number (9299850).

Almost surely, 2^74690432 is an apocalyptic number.

It is an amenable number.

74690432 is a deficient number, since it is larger than the sum of its proper divisors (74107168).

74690432 is an equidigital number, since it uses as much as digits as its factorization.

74690432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583533 (or 583521 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 74690432 is about 8642.3626399267. The cubic root of 74690432 is about 421.1353108164.

The spelling of 74690432 in words is "seventy-four million, six hundred ninety thousand, four hundred thirty-two".