249238464 has 28 divisors (see below), whose sum is σ = 659443944. Its totient is φ = 83079424.

The previous prime is 249238433. The next prime is 249238477. The reversal of 249238464 is 464832942.

249238464 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 648867 + ... + 649250.

Almost surely, 2^249238464 is an apocalyptic number.

249238464 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

249238464 is an abundant number, since it is smaller than the sum of its proper divisors (410205480).

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

249238464 is a wasteful number, since it uses less digits than its factorization.

249238464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1298132 (or 1298122 counting only the distinct ones).

The product of its digits is 331776, while the sum is 42.

The square root of 249238464 is about 15787.2880508338. The cubic root of 249238464 is about 629.3202241995.

The spelling of 249238464 in words is "two hundred forty-nine million, two hundred thirty-eight thousand, four hundred sixty-four".