74486990 has 8 divisors (see below), whose sum is σ = 134076600. Its totient is φ = 29794792.

The previous prime is 74486983. The next prime is 74487019. The reversal of 74486990 is 9968447.

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

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, 3724340 + ... + 3724359.

It is an arithmetic number, because the mean of its divisors is an integer number (16759575).

Almost surely, 2^74486990 is an apocalyptic number.

74486990 is a deficient number, since it is larger than the sum of its proper divisors (59589610).

74486990 is a wasteful number, since it uses less digits than its factorization.

74486990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7448706.

The product of its (nonzero) digits is 435456, while the sum is 47.

The square root of 74486990 is about 8630.5845688458. The cubic root of 74486990 is about 420.7525999646.

The spelling of 74486990 in words is "seventy-four million, four hundred eighty-six thousand, nine hundred ninety".