290190825 has 72 divisors (see below), whose sum is σ = 540277920. Its totient is φ = 148780800.

The previous prime is 290190821. The next prime is 290190827. The reversal of 290190825 is 528091092.

It is not a de Polignac number, because 290190825 - 2² = 290190821 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 290190825.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (290190821) 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, 765486 + ... + 765864.

It is an arithmetic number, because the mean of its divisors is an integer number (7503860).

Almost surely, 2^290190825 is an apocalyptic number.

290190825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

290190825 is a deficient number, since it is larger than the sum of its proper divisors (250087095).

290190825 is a wasteful number, since it uses less digits than its factorization.

290190825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519 (or 511 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 290190825 is about 17034.9882594618. The cubic root of 290190825 is about 662.0557458312.

The spelling of 290190825 in words is "two hundred ninety million, one hundred ninety thousand, eight hundred twenty-five".