249064680 has 32 divisors (see below), whose sum is σ = 747194400. Its totient is φ = 66417216.

The previous prime is 249064601. The next prime is 249064691. The reversal of 249064680 is 86460942.

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, 1037650 + ... + 1037889.

It is an arithmetic number, because the mean of its divisors is an integer number (23349825).

Almost surely, 2^249064680 is an apocalyptic number.

249064680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

249064680 is an abundant number, since it is smaller than the sum of its proper divisors (498129720).

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

249064680 is a wasteful number, since it uses less digits than its factorization.

249064680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2075553 (or 2075549 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 249064680 is about 15781.7831692113. The cubic root of 249064680 is about 629.1739235941.

The spelling of 249064680 in words is "two hundred forty-nine million, sixty-four thousand, six hundred eighty".