44440404400 has 60 divisors (see below), whose sum is σ = 122020660912. Its totient is φ = 15236709120.

The previous prime is 44440404389. The next prime is 44440404413. The reversal of 44440404400 is 440404444.

It is a Harshad number since it is a multiple of its sum of digits (28).

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, 7932987 + ... + 7938586.

Almost surely, 2^44440404400 is an apocalyptic number.

44440404400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

44440404400 is an abundant number, since it is smaller than the sum of its proper divisors (77580256512).

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

44440404400 is a wasteful number, since it uses less digits than its factorization.

44440404400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15871598 (or 15871587 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 44440404400 its reverse (440404444), we get a palindrome (44880808844).

The spelling of 44440404400 in words is "forty-four billion, four hundred forty million, four hundred four thousand, four hundred".