249131862 has 96 divisors (see below), whose sum is σ = 649888512. Its totient is φ = 70053984.

The previous prime is 249131849. The next prime is 249131863. The reversal of 249131862 is 268131942.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249131863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 227388 + ... + 228480.

It is an arithmetic number, because the mean of its divisors is an integer number (6769672).

Almost surely, 2^249131862 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 249131862, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (324944256).

249131862 is an abundant number, since it is smaller than the sum of its proper divisors (400756650).

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

249131862 is a wasteful number, since it uses less digits than its factorization.

249131862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1184 (or 1172 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 249131862 is about 15783.9114924026. The cubic root of 249131862 is about 629.2304890380.

The spelling of 249131862 in words is "two hundred forty-nine million, one hundred thirty-one thousand, eight hundred sixty-two".