249668132 has 36 divisors (see below), whose sum is σ = 535011120. Its totient is φ = 101367504.

The previous prime is 249668093. The next prime is 249668143. The reversal of 249668132 is 231866942.

It is a super-2 number, since 2×249668132² = 124668352272738848, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 249668132.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29798 + ... + 37245.

It is an arithmetic number, because the mean of its divisors is an integer number (14861420).

Almost surely, 2^249668132 is an apocalyptic number.

It is an amenable number.

249668132 is an abundant number, since it is smaller than the sum of its proper divisors (285342988).

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

249668132 is a wasteful number, since it uses less digits than its factorization.

249668132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67080 (or 67071 counting only the distinct ones).

The product of its digits is 124416, while the sum is 41.

The square root of 249668132 is about 15800.8902280853. The cubic root of 249668132 is about 629.6816498587.

The spelling of 249668132 in words is "two hundred forty-nine million, six hundred sixty-eight thousand, one hundred thirty-two".