44243140132421 has 16 divisors (see below), whose sum is σ = 46681060838400. Its totient is φ = 41816158210800.

The previous prime is 44243140132417. The next prime is 44243140132423. The reversal of 44243140132421 is 12423104134244.

It is a cyclic number.

It is not a de Polignac number, because 44243140132421 - 2² = 44243140132417 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44243140132423) 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, 533709386 + ... + 533792276.

It is an arithmetic number, because the mean of its divisors is an integer number (2917566302400).

Almost surely, 2^{44243140132421} is an apocalyptic number.

It is an amenable number.

44243140132421 is a deficient number, since it is larger than the sum of its proper divisors (2437920705979).

44243140132421 is a wasteful number, since it uses less digits than its factorization.

44243140132421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148520.

The product of its (nonzero) digits is 73728, while the sum is 35.

Adding to 44243140132421 its reverse (12423104134244), we get a palindrome (56666244266665).

The spelling of 44243140132421 in words is "forty-four trillion, two hundred forty-three billion, one hundred forty million, one hundred thirty-two thousand, four hundred twenty-one".