1990299022 has 8 divisors (see below), whose sum is σ = 3006927000. Its totient is φ = 987990024.

The previous prime is 1990299019. The next prime is 1990299037. The reversal of 1990299022 is 2209920991.

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

It is a super-2 number, since 2×1990299022² = 7922580393948312968, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1990299022.

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, 3579397 + ... + 3579952.

It is an arithmetic number, because the mean of its divisors is an integer number (375865875).

Almost surely, 2^1990299022 is an apocalyptic number.

1990299022 is a deficient number, since it is larger than the sum of its proper divisors (1016627978).

1990299022 is a wasteful number, since it uses less digits than its factorization.

1990299022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7159490.

The product of its (nonzero) digits is 52488, while the sum is 43.

The square root of 1990299022 is about 44612.7674774834. The cubic root of 1990299022 is about 1257.8806696519.

The spelling of 1990299022 in words is "one billion, nine hundred ninety million, two hundred ninety-nine thousand, twenty-two".