290190969 has 72 divisors (see below), whose sum is σ = 475088640. Its totient is φ = 170380800.

The previous prime is 290190959. The next prime is 290190973. The reversal of 290190969 is 969091092.

It is a happy number.

It is not a de Polignac number, because 290190969 - 2⁹ = 290190457 is a prime.

It is a super-2 number, since 2×290190969² = 168421596978317922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (290190919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 4757199 + ... + 4757259.

Almost surely, 2^290190969 is an apocalyptic number.

It is an amenable number.

290190969 is a deficient number, since it is larger than the sum of its proper divisors (184897671).

290190969 is a wasteful number, since it uses less digits than its factorization.

290190969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191 (or 171 counting only the distinct ones).

The product of its (nonzero) digits is 78732, while the sum is 45.

The square root of 290190969 is about 17034.9924860565. The cubic root of 290190969 is about 662.0558553408.

The spelling of 290190969 in words is "two hundred ninety million, one hundred ninety thousand, nine hundred sixty-nine".