249421934 has 8 divisors (see below), whose sum is σ = 376092288. Its totient is φ = 124057840.

The previous prime is 249421927. The next prime is 249421937. The reversal of 249421934 is 439124942.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×249421934² = 124422602320600712, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249421937) 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 3 ways as a sum of consecutive naturals, for example, 326087 + ... + 326850.

It is an arithmetic number, because the mean of its divisors is an integer number (47011536).

Almost surely, 2^249421934 is an apocalyptic number.

249421934 is a deficient number, since it is larger than the sum of its proper divisors (126670354).

249421934 is a wasteful number, since it uses less digits than its factorization.

249421934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653130.

The product of its digits is 62208, while the sum is 38.

The square root of 249421934 is about 15793.0976695517. The cubic root of 249421934 is about 629.4746052154.

The spelling of 249421934 in words is "two hundred forty-nine million, four hundred twenty-one thousand, nine hundred thirty-four".