479986990 has 32 divisors (see below), whose sum is σ = 991673280. Its totient is φ = 163855104.

The previous prime is 479986963. The next prime is 479986999. The reversal of 479986990 is 99689974.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (479986999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1596 + ... + 31024.

It is an arithmetic number, because the mean of its divisors is an integer number (30989790).

Almost surely, 2^479986990 is an apocalyptic number.

479986990 is an abundant number, since it is smaller than the sum of its proper divisors (511686290).

479986990 is a wasteful number, since it uses less digits than its factorization.

479986990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29676.

The product of its (nonzero) digits is 8817984, while the sum is 61.

The square root of 479986990 is about 21908.6053869250. The cubic root of 479986990 is about 782.9664542215.

The spelling of 479986990 in words is "four hundred seventy-nine million, nine hundred eighty-six thousand, nine hundred ninety".