249938340360 has 128 divisors (see below), whose sum is σ = 776896721280. Its totient is φ = 64274853888.

The previous prime is 249938340319. The next prime is 249938340401. The reversal of 249938340360 is 63043839942.

It is an interprime number because it is at equal distance from previous prime (249938340319) and next prime (249938340401).

It is a super-2 number, since 2×249938340360² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 252639 + ... + 750801.

It is an arithmetic number, because the mean of its divisors is an integer number (6069505635).

Almost surely, 2^249938340360 is an apocalyptic number.

249938340360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 249938340360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (388448360640).

249938340360 is an abundant number, since it is smaller than the sum of its proper divisors (526958380920).

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

249938340360 is a wasteful number, since it uses less digits than its factorization.

249938340360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498327 (or 498323 counting only the distinct ones).

The product of its (nonzero) digits is 3359232, while the sum is 51.

The spelling of 249938340360 in words is "two hundred forty-nine billion, nine hundred thirty-eight million, three hundred forty thousand, three hundred sixty".