74728044 has 18 divisors (see below), whose sum is σ = 188895980. Its totient is φ = 24909336.

The previous prime is 74728037. The next prime is 74728061. The reversal of 74728044 is 44082747.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 2075779 = 74728044 / (7 + 4 + 7 + 2 + 8 + 0 + 4 + 4).

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 5 ways as a sum of consecutive naturals, for example, 1037854 + ... + 1037925.

Almost surely, 2^74728044 is an apocalyptic number.

It is an amenable number.

74728044 is an abundant number, since it is smaller than the sum of its proper divisors (114167936).

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

74728044 is a wasteful number, since it uses less digits than its factorization.

74728044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2075789 (or 2075784 counting only the distinct ones).

The product of its (nonzero) digits is 50176, while the sum is 36.

The square root of 74728044 is about 8644.5383913775. The cubic root of 74728044 is about 421.2059895848.

The spelling of 74728044 in words is "seventy-four million, seven hundred twenty-eight thousand, forty-four".