290080400904 has 64 divisors (see below), whose sum is σ = 920890166400. Its totient is φ = 82880114112.

The previous prime is 290080400891. The next prime is 290080400933. The reversal of 290080400904 is 409004080092.

It is a happy number.

290080400904 is a `hidden beast` number, since 2 + 90 + 0 + 80 + 400 + 90 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95924547 + ... + 95927570.

It is an arithmetic number, because the mean of its divisors is an integer number (14388908850).

Almost surely, 2^290080400904 is an apocalyptic number.

290080400904 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

290080400904 is an abundant number, since it is smaller than the sum of its proper divisors (630809765496).

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

290080400904 is a wasteful number, since it uses less digits than its factorization.

290080400904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191852139 (or 191852129 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

Adding to 290080400904 its reverse (409004080092), we get a palindrome (699084480996).

The spelling of 290080400904 in words is "two hundred ninety billion, eighty million, four hundred thousand, nine hundred four".