44042020400 has 60 divisors (see below), whose sum is σ = 120926812272. Its totient is φ = 15100120320.

The previous prime is 44042020289. The next prime is 44042020433. The reversal of 44042020400 is 402024044.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7861847 + ... + 7867446.

Almost surely, 2^44042020400 is an apocalyptic number.

44042020400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

44042020400 is an abundant number, since it is smaller than the sum of its proper divisors (76884791872).

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

44042020400 is a wasteful number, since it uses less digits than its factorization.

44042020400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15729318 (or 15729307 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 44042020400 its reverse (402024044), we get a palindrome (44444044444).

The spelling of 44042020400 in words is "forty-four billion, forty-two million, twenty thousand, four hundred".