290313396 has 120 divisors (see below), whose sum is σ = 794221736. Its totient is φ = 92378880.

The previous prime is 290313379. The next prime is 290313427. The reversal of 290313396 is 693313092.

It is a happy number.

290313396 is a `hidden beast` number, since 290 + 31 + 339 + 6 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 45077796 + 245235600 = 6714^2 + 15660^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 290313396.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 731070 + ... + 731466.

Almost surely, 2^290313396 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 290313396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (397110868).

290313396 is an abundant number, since it is smaller than the sum of its proper divisors (503908340).

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

290313396 is a wasteful number, since it uses less digits than its factorization.

290313396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511 (or 500 counting only the distinct ones).

The product of its (nonzero) digits is 26244, while the sum is 36.

The square root of 290313396 is about 17038.5855046714. The cubic root of 290313396 is about 662.1489458974.

The spelling of 290313396 in words is "two hundred ninety million, three hundred thirteen thousand, three hundred ninety-six".