249482140 has 48 divisors (see below), whose sum is σ = 556869600. Its totient is φ = 93885696.

The previous prime is 249482137. The next prime is 249482153. The reversal of 249482140 is 41284942.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a junction number, because it is equal to n+sod(n) for n = 249482096 and 249482105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96991 + ... + 99529.

It is an arithmetic number, because the mean of its divisors is an integer number (11601450).

Almost surely, 2^249482140 is an apocalyptic number.

249482140 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 249482140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (278434800).

249482140 is an abundant number, since it is smaller than the sum of its proper divisors (307387460).

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

249482140 is a wasteful number, since it uses less digits than its factorization.

249482140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2599 (or 2563 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 249482140 is about 15795.0036403921. The cubic root of 249482140 is about 629.5252491164.

The spelling of 249482140 in words is "two hundred forty-nine million, four hundred eighty-two thousand, one hundred forty".