290069905388 has 6 divisors (see below), whose sum is σ = 507622334436. Its totient is φ = 145034952692.

The previous prime is 290069905357. The next prime is 290069905403. The reversal of 290069905388 is 883509960092.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36258738170 + ... + 36258738177.

It is an arithmetic number, because the mean of its divisors is an integer number (84603722406).

Almost surely, 2^290069905388 is an apocalyptic number.

It is an amenable number.

290069905388 is a deficient number, since it is larger than the sum of its proper divisors (217552429048).

290069905388 is a wasteful number, since it uses less digits than its factorization.

290069905388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72517476351 (or 72517476349 counting only the distinct ones).

The product of its (nonzero) digits is 8398080, while the sum is 59.

The spelling of 290069905388 in words is "two hundred ninety billion, sixty-nine million, nine hundred five thousand, three hundred eighty-eight".