290342260 has 24 divisors (see below), whose sum is σ = 656620776. Its totient is φ = 107203200.

The previous prime is 290342231. The next prime is 290342263. The reversal of 290342260 is 62243092.

It can be written as a sum of positive squares in 4 ways, for example, as 47169424 + 243172836 = 6868^2 + 15594^2 .

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (290342263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 558091 + ... + 558610.

It is an arithmetic number, because the mean of its divisors is an integer number (27359199).

Almost surely, 2^290342260 is an apocalyptic number.

290342260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

290342260 is an abundant number, since it is smaller than the sum of its proper divisors (366278516).

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

290342260 is a wasteful number, since it uses less digits than its factorization.

290342260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1116723 (or 1116721 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 290342260 is about 17039.4325022872. The cubic root of 290342260 is about 662.1708895785.

The spelling of 290342260 in words is "two hundred ninety million, three hundred forty-two thousand, two hundred sixty".