1244402199880 has 64 divisors (see below), whose sum is σ = 3200151277440. Its totient is φ = 426617528832.

The previous prime is 1244402199797. The next prime is 1244402199907. The reversal of 1244402199880 is 889912044421.

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, 3399532 + ... + 3747748.

It is an arithmetic number, because the mean of its divisors is an integer number (50002363710).

Almost surely, 2^{1244402199880} is an apocalyptic number.

1244402199880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1244402199880 is an abundant number, since it is smaller than the sum of its proper divisors (1955749077560).

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

1244402199880 is a wasteful number, since it uses less digits than its factorization.

1244402199880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360998 (or 360994 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 52.

The spelling of 1244402199880 in words is "one trillion, two hundred forty-four billion, four hundred two million, one hundred ninety-nine thousand, eight hundred eighty".