249493950 has 36 divisors (see below), whose sum is σ = 670308288. Its totient is φ = 66531600.

The previous prime is 249493939. The next prime is 249493963. The reversal of 249493950 is 59394942.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 249493896 and 249493905.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 276766 + ... + 277665.

Almost surely, 2^249493950 is an apocalyptic number.

249493950 is an abundant number, since it is smaller than the sum of its proper divisors (420814338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

249493950 is a wasteful number, since it uses less digits than its factorization.

249493950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554449 (or 554441 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 45.

The square root of 249493950 is about 15795.3774883667. The cubic root of 249493950 is about 629.5351824606.

The spelling of 249493950 in words is "two hundred forty-nine million, four hundred ninety-three thousand, nine hundred fifty".