444453792438 has 16 divisors (see below), whose sum is σ = 889077513456. Its totient is φ = 148122942720.

The previous prime is 444453792437. The next prime is 444453792451. The reversal of 444453792438 is 834297354444.

It is a super-2 number, since 2×444453792438² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444453792437) 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, 7046343 + ... + 7109138.

It is an arithmetic number, because the mean of its divisors is an integer number (55567344591).

Almost surely, 2^444453792438 is an apocalyptic number.

444453792438 is an abundant number, since it is smaller than the sum of its proper divisors (444623721018).

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

444453792438 is a wasteful number, since it uses less digits than its factorization.

444453792438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14160719.

The product of its digits is 46448640, while the sum is 57.

The spelling of 444453792438 in words is "four hundred forty-four billion, four hundred fifty-three million, seven hundred ninety-two thousand, four hundred thirty-eight".