290045960 has 32 divisors (see below), whose sum is σ = 670244760. Its totient is φ = 112882176.

The previous prime is 290045957. The next prime is 290045969. The reversal of 290045960 is 69540092.

It can be written as a sum of positive squares in 4 ways, for example, as 270207844 + 19838116 = 16438^2 + 4454^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 290045960.

It is not an unprimeable number, because it can be changed into a prime (290045969) 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, 96509 + ... + 99468.

Almost surely, 2^290045960 is an apocalyptic number.

290045960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

290045960 is an abundant number, since it is smaller than the sum of its proper divisors (380198800).

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

290045960 is a wasteful number, since it uses less digits than its factorization.

290045960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196025 (or 196021 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 290045960 is about 17030.7357445297. The cubic root of 290045960 is about 661.9455600946.

The spelling of 290045960 in words is "two hundred ninety million, forty-five thousand, nine hundred sixty".