1252892445240 has 64 divisors (see below), whose sum is σ = 3760778973600. Its totient is φ = 333917839872.

The previous prime is 1252892445191. The next prime is 1252892445377. The reversal of 1252892445240 is 425442982521.

It is a self number, because there is not a number n which added to its sum of digits gives 1252892445240.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2703367 + ... + 3132726.

Almost surely, 2^{1252892445240} is an apocalyptic number.

1252892445240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1252892445240 is an abundant number, since it is smaller than the sum of its proper divisors (2507886528360).

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

1252892445240 is a wasteful number, since it uses less digits than its factorization.

1252892445240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5837896 (or 5837892 counting only the distinct ones).

The product of its (nonzero) digits is 1843200, while the sum is 48.

The spelling of 1252892445240 in words is "one trillion, two hundred fifty-two billion, eight hundred ninety-two million, four hundred forty-five thousand, two hundred forty".