250640332 has 18 divisors (see below), whose sum is σ = 453233004. Its totient is φ = 121275720.

The previous prime is 250640321. The next prime is 250640371. The reversal of 250640332 is 233046052.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 250640297 and 250640306.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 28758 + ... + 36445.

Almost surely, 2^250640332 is an apocalyptic number.

It is an amenable number.

250640332 is a deficient number, since it is larger than the sum of its proper divisors (202592672).

250640332 is a wasteful number, since it uses less digits than its factorization.

250640332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65269 (or 65236 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 250640332 is about 15831.6244270763. The cubic root of 250640332 is about 630.4979115776.

Adding to 250640332 its reverse (233046052), we get a palindrome (483686384).

The spelling of 250640332 in words is "two hundred fifty million, six hundred forty thousand, three hundred thirty-two".