250643445340 has 48 divisors (see below), whose sum is σ = 536806579680. Its totient is φ = 98277108480.

The previous prime is 250643445329. The next prime is 250643445379. The reversal of 250643445340 is 43544346052.

It is a junction number, because it is equal to n+sod(n) for n = 250643445293 and 250643445302.

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, 6871 + ... + 708049.

It is an arithmetic number, because the mean of its divisors is an integer number (11183470410).

Almost surely, 2^250643445340 is an apocalyptic number.

250643445340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

250643445340 is an abundant number, since it is smaller than the sum of its proper divisors (286163134340).

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

250643445340 is a wasteful number, since it uses less digits than its factorization.

250643445340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701542 (or 701540 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 40.

The spelling of 250643445340 in words is "two hundred fifty billion, six hundred forty-three million, four hundred forty-five thousand, three hundred forty".