990559190 has 16 divisors (see below), whose sum is σ = 1831196592. Its totient is φ = 385514784.

The previous prime is 990559133. The next prime is 990559211. The reversal of 990559190 is 91955099.

It is a super-2 number, since 2×990559190² = 1962415017786912200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1338224 + ... + 1338963.

It is an arithmetic number, because the mean of its divisors is an integer number (114449787).

Almost surely, 2^990559190 is an apocalyptic number.

990559190 is a deficient number, since it is larger than the sum of its proper divisors (840637402).

990559190 is a wasteful number, since it uses less digits than its factorization.

990559190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2677231.

The product of its (nonzero) digits is 164025, while the sum is 47.

The square root of 990559190 is about 31473.1503030758. The cubic root of 990559190 is about 996.8431078525.

The spelling of 990559190 in words is "nine hundred ninety million, five hundred fifty-nine thousand, one hundred ninety".