249945632 has 12 divisors (see below), whose sum is σ = 492080526. Its totient is φ = 124972800.

The previous prime is 249945613. The next prime is 249945637. The reversal of 249945632 is 236549942.

It can be written as a sum of positive squares in only one way, i.e., 179452816 + 70492816 = 13396^2 + 8396^2 .

It is not an unprimeable number, because it can be changed into a prime (249945637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3905369 + ... + 3905432.

Almost surely, 2^249945632 is an apocalyptic number.

It is an amenable number.

249945632 is a deficient number, since it is larger than the sum of its proper divisors (242134894).

249945632 is an equidigital number, since it uses as much as digits as its factorization.

249945632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7810811 (or 7810803 counting only the distinct ones).

The product of its digits is 466560, while the sum is 44.

The square root of 249945632 is about 15809.6689402403. The cubic root of 249945632 is about 629.9148553782.

The spelling of 249945632 in words is "two hundred forty-nine million, nine hundred forty-five thousand, six hundred thirty-two".