44400121010 has 32 divisors (see below), whose sum is σ = 91485037440. Its totient is φ = 15198291072.

The previous prime is 44400120983. The next prime is 44400121013. The reversal of 44400121010 is 1012100444.

It is a self number, because there is not a number n which added to its sum of digits gives 44400121010.

It is not an unprimeable number, because it can be changed into a prime (44400121013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 469019 + ... + 555678.

It is an arithmetic number, because the mean of its divisors is an integer number (2858907420).

Almost surely, 2^44400121010 is an apocalyptic number.

44400121010 is an abundant number, since it is smaller than the sum of its proper divisors (47084916430).

44400121010 is a wasteful number, since it uses less digits than its factorization.

44400121010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1025330.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 44400121010 its reverse (1012100444), we get a palindrome (45412221454).

The spelling of 44400121010 in words is "forty-four billion, four hundred million, one hundred twenty-one thousand, ten".