1244027421276 has 48 divisors (see below), whose sum is σ = 2922441984000. Its totient is φ = 411860341312.

The previous prime is 1244027421193. The next prime is 1244027421277. The reversal of 1244027421276 is 6721247204421.

It is a super-2 number, since 2×1244027421276² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244027421277) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35855305 + ... + 35889983.

It is an arithmetic number, because the mean of its divisors is an integer number (60884208000).

Almost surely, 2^{1244027421276} is an apocalyptic number.

It is an amenable number.

1244027421276 is an abundant number, since it is smaller than the sum of its proper divisors (1678414562724).

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

1244027421276 is a wasteful number, since it uses less digits than its factorization.

1244027421276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54898 (or 54896 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 42.

The spelling of 1244027421276 in words is "one trillion, two hundred forty-four billion, twenty-seven million, four hundred twenty-one thousand, two hundred seventy-six".