290115872 has 18 divisors (see below), whose sum is σ = 571355379. Its totient is φ = 145009760.

The previous prime is 290115851. The next prime is 290115899. The reversal of 290115872 is 278511092.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 145057936 + 145057936 = 12044^2 + 12044^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=12044.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 94847 + ... + 97857.

Almost surely, 2^290115872 is an apocalyptic number.

It is an amenable number.

290115872 is a deficient number, since it is larger than the sum of its proper divisors (281239507).

290115872 is an frugal number, since it uses more digits than its factorization.

290115872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6032 (or 3013 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 35.

The square root of 290115872 is about 17032.7881452216. The cubic root of 290115872 is about 661.9987404253.

The spelling of 290115872 in words is "two hundred ninety million, one hundred fifteen thousand, eight hundred seventy-two".