290881096 has 24 divisors (see below), whose sum is σ = 599493510. Its totient is φ = 132218240.

The previous prime is 290881079. The next prime is 290881133. The reversal of 290881096 is 690188092.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 227104900 + 63776196 = 15070^2 + 7986^2 .

It is a super-2 number, since 2×290881096² = 169223624020322432, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 149281 + ... + 151216.

Almost surely, 2^290881096 is an apocalyptic number.

It is an amenable number.

290881096 is an abundant number, since it is smaller than the sum of its proper divisors (308612414).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

290881096 is a wasteful number, since it uses less digits than its factorization.

290881096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300525 (or 300510 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 43.

The square root of 290881096 is about 17055.2366151866. The cubic root of 290881096 is about 662.5802696617.

The spelling of 290881096 in words is "two hundred ninety million, eight hundred eighty-one thousand, ninety-six".