290963872 has 48 divisors (see below), whose sum is σ = 605072160. Its totient is φ = 137348352.

The previous prime is 290963867. The next prime is 290963927. The reversal of 290963872 is 278369092.

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 226143 + ... + 227425.

It is an arithmetic number, because the mean of its divisors is an integer number (12605670).

Almost surely, 2^290963872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 290963872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (302536080).

290963872 is an abundant number, since it is smaller than the sum of its proper divisors (314108288).

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

290963872 is a wasteful number, since it uses less digits than its factorization.

290963872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1685 (or 1677 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 290963872 is about 17057.6631459295. The cubic root of 290963872 is about 662.6431138312.

The spelling of 290963872 in words is "two hundred ninety million, nine hundred sixty-three thousand, eight hundred seventy-two".