74481885 has 12 divisors (see below), whose sum is σ = 129102012. Its totient is φ = 39723648.

The previous prime is 74481857. The next prime is 74481893. The reversal of 74481885 is 58818447.

It can be written as a sum of positive squares in 2 ways, for example, as 22382361 + 52099524 = 4731^2 + 7218^2 .

It is not a de Polignac number, because 74481885 - 2⁶ = 74481821 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 1655153 = 74481885 / (7 + 4 + 4 + 8 + 1 + 8 + 8 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 74481885.

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 11 ways as a sum of consecutive naturals, for example, 827532 + ... + 827621.

It is an arithmetic number, because the mean of its divisors is an integer number (10758501).

Almost surely, 2^74481885 is an apocalyptic number.

It is an amenable number.

74481885 is a deficient number, since it is larger than the sum of its proper divisors (54620127).

74481885 is a wasteful number, since it uses less digits than its factorization.

74481885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1655164 (or 1655161 counting only the distinct ones).

The product of its digits is 286720, while the sum is 45.

The square root of 74481885 is about 8630.2888132437. The cubic root of 74481885 is about 420.7429875876.

The spelling of 74481885 in words is "seventy-four million, four hundred eighty-one thousand, eight hundred eighty-five".