74523320 has 32 divisors (see below), whose sum is σ = 176504400. Its totient is φ = 28240128.

The previous prime is 74523277. The next prime is 74523367. The reversal of 74523320 is 2332547.

It is a self number, because there is not a number n which added to its sum of digits gives 74523320.

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 7 ways as a sum of consecutive naturals, for example, 48269 + ... + 49788.

Almost surely, 2^74523320 is an apocalyptic number.

It is an amenable number.

74523320 is an abundant number, since it is smaller than the sum of its proper divisors (101981080).

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

74523320 is a wasteful number, since it uses less digits than its factorization.

74523320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98087 (or 98083 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 26.

The square root of 74523320 is about 8632.6890364474. The cubic root of 74523320 is about 420.8209942684.

Adding to 74523320 its reverse (2332547), we get a palindrome (76855867).

The spelling of 74523320 in words is "seventy-four million, five hundred twenty-three thousand, three hundred twenty".