290488521 has 8 divisors (see below), whose sum is σ = 396325600. Its totient is φ = 189155232.

The previous prime is 290488501. The next prime is 290488543. The reversal of 290488521 is 125884092.

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

It is not a de Polignac number, because 290488521 - 2⁵ = 290488489 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 290488521.

It is not an unprimeable number, because it can be changed into a prime (290488501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1125796 + ... + 1126053.

It is an arithmetic number, because the mean of its divisors is an integer number (49540700).

Almost surely, 2^290488521 is an apocalyptic number.

It is an amenable number.

290488521 is a deficient number, since it is larger than the sum of its proper divisors (105837079).

290488521 is a wasteful number, since it uses less digits than its factorization.

290488521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2251895.

The product of its (nonzero) digits is 46080, while the sum is 39.

The square root of 290488521 is about 17043.7238008600. The cubic root of 290488521 is about 662.2820612674.

The spelling of 290488521 in words is "two hundred ninety million, four hundred eighty-eight thousand, five hundred twenty-one".