290402527890 has 64 divisors (see below), whose sum is σ = 721267493760. Its totient is φ = 74772472320.

The previous prime is 290402527873. The next prime is 290402527901. The reversal of 290402527890 is 98725204092.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 853155 + ... + 1143974.

It is an arithmetic number, because the mean of its divisors is an integer number (11269804590).

Almost surely, 2^290402527890 is an apocalyptic number.

290402527890 is an abundant number, since it is smaller than the sum of its proper divisors (430864965870).

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

290402527890 is a wasteful number, since it uses less digits than its factorization.

290402527890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1997307.

The product of its (nonzero) digits is 725760, while the sum is 48.

The spelling of 290402527890 in words is "two hundred ninety billion, four hundred two million, five hundred twenty-seven thousand, eight hundred ninety".