249340671340 has 24 divisors (see below), whose sum is σ = 525073963680. Its totient is φ = 99458448768.

The previous prime is 249340671337. The next prime is 249340671367. The reversal of 249340671340 is 43176043942.

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, 17356377 + ... + 17370736.

It is an arithmetic number, because the mean of its divisors is an integer number (21878081820).

Almost surely, 2^249340671340 is an apocalyptic number.

249340671340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

249340671340 is an abundant number, since it is smaller than the sum of its proper divisors (275733292340).

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

249340671340 is a wasteful number, since it uses less digits than its factorization.

249340671340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34727481 (or 34727479 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 43.

The spelling of 249340671340 in words is "two hundred forty-nine billion, three hundred forty million, six hundred seventy-one thousand, three hundred forty".