74755990 has 8 divisors (see below), whose sum is σ = 134560800. Its totient is φ = 29902392.

The previous prime is 74755979. The next prime is 74756027. The reversal of 74755990 is 9955747.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 74755990.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3737790 + ... + 3737809.

It is an arithmetic number, because the mean of its divisors is an integer number (16820100).

Almost surely, 2^74755990 is an apocalyptic number.

74755990 is a deficient number, since it is larger than the sum of its proper divisors (59804810).

74755990 is a wasteful number, since it uses less digits than its factorization.

74755990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7475606.

The product of its (nonzero) digits is 396900, while the sum is 46.

The square root of 74755990 is about 8646.1546366000. The cubic root of 74755990 is about 421.2584890880.

The spelling of 74755990 in words is "seventy-four million, seven hundred fifty-five thousand, nine hundred ninety".