290726672 has 10 divisors (see below), whose sum is σ = 563282958. Its totient is φ = 145363328.

The previous prime is 290726669. The next prime is 290726717. The reversal of 290726672 is 276627092.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 281702656 + 9024016 = 16784^2 + 3004^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9085193 + ... + 9085224.

Almost surely, 2^290726672 is an apocalyptic number.

It is an amenable number.

290726672 is a deficient number, since it is larger than the sum of its proper divisors (272556286).

290726672 is a wasteful number, since it uses less digits than its factorization.

290726672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18170425 (or 18170419 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 41.

The square root of 290726672 is about 17050.7088415702. The cubic root of 290726672 is about 662.4629979097.

The spelling of 290726672 in words is "two hundred ninety million, seven hundred twenty-six thousand, six hundred seventy-two".