290202020287 has 4 divisors (see below), whose sum is σ = 290831526216. Its totient is φ = 289572514360.

The previous prime is 290202020267. The next prime is 290202020321. The reversal of 290202020287 is 782020202092.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 290202020287 - 2¹⁵ = 290201987519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (290202020267) 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, 314752273 + ... + 314753194.

It is an arithmetic number, because the mean of its divisors is an integer number (72707881554).

Almost surely, 2^290202020287 is an apocalyptic number.

290202020287 is a deficient number, since it is larger than the sum of its proper divisors (629505929).

290202020287 is an equidigital number, since it uses as much as digits as its factorization.

290202020287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629505928.

The product of its (nonzero) digits is 16128, while the sum is 34.

The spelling of 290202020287 in words is "two hundred ninety billion, two hundred two million, twenty thousand, two hundred eighty-seven".