249197796 has 45 divisors (see below), whose sum is σ = 652195929. Its totient is φ = 82971216.

The previous prime is 249197759. The next prime is 249197803. The reversal of 249197796 is 697791942.

The square root of 249197796 is 15786.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 209960100 + 39237696 = 14490^2 + 6264^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

Its product of digits (1714608) is a multiple of the sum of its prime divisors (882).

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 283710 + ... + 284586.

Almost surely, 2^249197796 is an apocalyptic number.

249197796 is the 15786-th square number.

It is an amenable number.

249197796 is an abundant number, since it is smaller than the sum of its proper divisors (402998133).

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

249197796 is an frugal number, since it uses more digits than its factorization.

249197796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1770 (or 882 counting only the distinct ones).

The product of its digits is 1714608, while the sum is 54.

The cubic root of 249197796 is about 629.2859938128.

The spelling of 249197796 in words is "two hundred forty-nine million, one hundred ninety-seven thousand, seven hundred ninety-six".