249796388 has 12 divisors (see below), whose sum is σ = 451245312. Its totient is φ = 120869160.

The previous prime is 249796381. The next prime is 249796397. The reversal of 249796388 is 883697942.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (249796381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1007120 + ... + 1007367.

It is an arithmetic number, because the mean of its divisors is an integer number (37603776).

Almost surely, 2^249796388 is an apocalyptic number.

It is an amenable number.

249796388 is a deficient number, since it is larger than the sum of its proper divisors (201448924).

249796388 is a wasteful number, since it uses less digits than its factorization.

249796388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2014522 (or 2014520 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 56.

The square root of 249796388 is about 15804.9482125061. The cubic root of 249796388 is about 629.7894551333.

The spelling of 249796388 in words is "two hundred forty-nine million, seven hundred ninety-six thousand, three hundred eighty-eight".