74845120 has 56 divisors (see below), whose sum is σ = 203691744. Its totient is φ = 25660416.

The previous prime is 74845093. The next prime is 74845249. The reversal of 74845120 is 2154847.

It is a tau number, because it is divible by the number of its divisors (56).

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, 14467 + ... + 18946.

Almost surely, 2^74845120 is an apocalyptic number.

74845120 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

74845120 is an abundant number, since it is smaller than the sum of its proper divisors (128846624).

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

74845120 is a wasteful number, since it uses less digits than its factorization.

74845120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33437 (or 33427 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 74845120 is about 8651.3074156453. The cubic root of 74845120 is about 421.4258418176.

Adding to 74845120 its reverse (2154847), we get a palindrome (76999967).

The spelling of 74845120 in words is "seventy-four million, eight hundred forty-five thousand, one hundred twenty".