290900122 has 16 divisors (see below), whose sum is σ = 439114752. Its totient is φ = 144532080.

The previous prime is 290900087. The next prime is 290900147. The reversal of 290900122 is 221009092.

It is a super-2 number, since 2×290900122² = 169245761959229768, which contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 293047 + ... + 294037.

It is an arithmetic number, because the mean of its divisors is an integer number (27444672).

Almost surely, 2^290900122 is an apocalyptic number.

290900122 is a deficient number, since it is larger than the sum of its proper divisors (148214630).

290900122 is a wasteful number, since it uses less digits than its factorization.

290900122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1773.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 290900122 is about 17055.7943819688. The cubic root of 290900122 is about 662.5947154009.

The spelling of 290900122 in words is "two hundred ninety million, nine hundred thousand, one hundred twenty-two".