290947402 has 8 divisors (see below), whose sum is σ = 436529412. Its totient is φ = 145437600.

The previous prime is 290947379. The next prime is 290947409. The reversal of 290947402 is 204749092.

It can be written as a sum of positive squares in 2 ways, for example, as 259822161 + 31125241 = 16119^2 + 5579^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (290947409) 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, 6499 + ... + 24982.

Almost surely, 2^290947402 is an apocalyptic number.

290947402 is a deficient number, since it is larger than the sum of its proper divisors (145582010).

290947402 is a wasteful number, since it uses less digits than its factorization.

290947402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36104.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 290947402 is about 17057.1803648786. The cubic root of 290947402 is about 662.6306106317.

The spelling of 290947402 in words is "two hundred ninety million, nine hundred forty-seven thousand, four hundred two".