444404400413442 has 48 divisors (see below), whose sum is σ = 1088337307148640. Its totient is φ = 120289912892352.

The previous prime is 444404400413437. The next prime is 444404400413453. The reversal of 444404400413442 is 244314004404444.

It is a super-2 number, since 2×444404400413442² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 444404400413394 and 444404400413403.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39778404763 + ... + 39778415934.

It is an arithmetic number, because the mean of its divisors is an integer number (22673693898930).

Almost surely, 2^{444404400413442} is an apocalyptic number.

444404400413442 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

444404400413442 is an abundant number, since it is smaller than the sum of its proper divisors (643932906735198).

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

444404400413442 is a wasteful number, since it uses less digits than its factorization.

444404400413442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79556820735 (or 79556820728 counting only the distinct ones).

The product of its (nonzero) digits is 1572864, while the sum is 42.

Adding to 444404400413442 its reverse (244314004404444), we get a palindrome (688718404817886).

The spelling of 444404400413442 in words is "four hundred forty-four trillion, four hundred four billion, four hundred million, four hundred thirteen thousand, four hundred forty-two".