290897488 has 20 divisors (see below), whose sum is σ = 644130400. Its totient is φ = 124670304.

The previous prime is 290897483. The next prime is 290897531. The reversal of 290897488 is 884798092.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (290897483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1298538 + ... + 1298761.

It is an arithmetic number, because the mean of its divisors is an integer number (32206520).

Almost surely, 2^290897488 is an apocalyptic number.

290897488 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

290897488 is an abundant number, since it is smaller than the sum of its proper divisors (353232912).

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

290897488 is a wasteful number, since it uses less digits than its factorization.

290897488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2597314 (or 2597308 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 55.

The square root of 290897488 is about 17055.7171646343. The cubic root of 290897488 is about 662.5927155395.

The spelling of 290897488 in words is "two hundred ninety million, eight hundred ninety-seven thousand, four hundred eighty-eight".