44400145680 has 160 divisors (see below), whose sum is σ = 166837000320. Its totient is φ = 10763665920.

The previous prime is 44400145663. The next prime is 44400145681. The reversal of 44400145680 is 8654100444.

It is a happy number.

44400145680 is a `hidden beast` number, since 44 + 40 + 0 + 14 + 568 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (44400145681) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 910587 + ... + 958106.

It is an arithmetic number, because the mean of its divisors is an integer number (1042731252).

Almost surely, 2^44400145680 is an apocalyptic number.

44400145680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

44400145680 is an abundant number, since it is smaller than the sum of its proper divisors (122436854640).

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

44400145680 is a wasteful number, since it uses less digits than its factorization.

44400145680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1868726 (or 1868714 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 36.

The spelling of 44400145680 in words is "forty-four billion, four hundred million, one hundred forty-five thousand, six hundred eighty".