250421330 has 32 divisors (see below), whose sum is σ = 476012160. Its totient is φ = 94590720.

The previous prime is 250421329. The next prime is 250421333. The reversal of 250421330 is 33124052.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (250421333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62075 + ... + 65985.

It is an arithmetic number, because the mean of its divisors is an integer number (14875380).

Almost surely, 2^250421330 is an apocalyptic number.

250421330 is a deficient number, since it is larger than the sum of its proper divisors (225590830).

250421330 is a wasteful number, since it uses less digits than its factorization.

250421330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4274.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 250421330 is about 15824.7063163902. The cubic root of 250421330 is about 630.3142213486.

Adding to 250421330 its reverse (33124052), we get a palindrome (283545382).

The spelling of 250421330 in words is "two hundred fifty million, four hundred twenty-one thousand, three hundred thirty".