290425 has 6 divisors (see below), whose sum is σ = 360158. Its totient is φ = 232320.

The previous prime is 290419. The next prime is 290429. The reversal of 290425 is 524092.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 8464 + 281961 = 92^2 + 531^2 .

It is not a de Polignac number, because 290425 - 2⁵ = 290393 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 290396 and 290405.

It is not an unprimeable number, because it can be changed into a prime (290429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5784 + ... + 5833.

2²⁹⁰⁴²⁵ is an apocalyptic number.

290425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

290425 is a deficient number, since it is larger than the sum of its proper divisors (69733).

290425 is a wasteful number, since it uses less digits than its factorization.

290425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11627 (or 11622 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 290425 is about 538.9109388387. The cubic root of 290425 is about 66.2233784104.

The spelling of 290425 in words is "two hundred ninety thousand, four hundred twenty-five".