44312421 has 32 divisors (see below), whose sum is σ = 67108608. Its totient is φ = 25850880.

The previous prime is 44312419. The next prime is 44312483. The reversal of 44312421 is 12421344.

It is not a de Polignac number, because 44312421 - 2¹ = 44312419 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44312491) 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, 42891 + ... + 43911.

It is an arithmetic number, because the mean of its divisors is an integer number (2097144).

Almost surely, 2^44312421 is an apocalyptic number.

It is an amenable number.

44312421 is a deficient number, since it is larger than the sum of its proper divisors (22796187).

44312421 is a wasteful number, since it uses less digits than its factorization.

44312421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1101.

The product of its digits is 768, while the sum is 21.

The square root of 44312421 is about 6656.7575440300. The cubic root of 44312421 is about 353.8684355813.

Adding to 44312421 its reverse (12421344), we get a palindrome (56733765).

The spelling of 44312421 in words is "forty-four million, three hundred twelve thousand, four hundred twenty-one".