249111340 has 24 divisors (see below), whose sum is σ = 523509840. Its totient is φ = 99572928.

The previous prime is 249111281. The next prime is 249111361. The reversal of 249111340 is 43111942.

It is a happy number.

249111340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30846 + ... + 38074.

It is an arithmetic number, because the mean of its divisors is an integer number (21812910).

Almost surely, 2^249111340 is an apocalyptic number.

249111340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

249111340 is an abundant number, since it is smaller than the sum of its proper divisors (274398500).

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

249111340 is a wasteful number, since it uses less digits than its factorization.

249111340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8961 (or 8959 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 249111340 is about 15783.2613866716. The cubic root of 249111340 is about 629.2132111428.

It can be divided in two parts, 2491 and 11340, that added together give a palindrome (13831).

The spelling of 249111340 in words is "two hundred forty-nine million, one hundred eleven thousand, three hundred forty".