2044402002456 has 32 divisors (see below), whose sum is σ = 5575641825600. Its totient is φ = 619515758240.

The previous prime is 2044402002451. The next prime is 2044402002463. The reversal of 2044402002456 is 6542002044402.

It is a super-2 number, since 2×2044402002456² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2044402002451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3871973226 + ... + 3871973753.

It is an arithmetic number, because the mean of its divisors is an integer number (174238807050).

Almost surely, 2^{2044402002456} is an apocalyptic number.

It is an amenable number.

2044402002456 is an abundant number, since it is smaller than the sum of its proper divisors (3531239823144).

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

2044402002456 is a wasteful number, since it uses less digits than its factorization.

2044402002456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7743946999 (or 7743946995 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 33.

Adding to 2044402002456 its reverse (6542002044402), we get a palindrome (8586404046858).

The spelling of 2044402002456 in words is "two trillion, forty-four billion, four hundred two million, two thousand, four hundred fifty-six".