44431420 has 24 divisors (see below), whose sum is σ = 101788848. Its totient is φ = 16156800.

The previous prime is 44431351. The next prime is 44431441. The reversal of 44431420 is 2413444.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 44431391 and 44431400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100761 + ... + 101200.

It is an arithmetic number, because the mean of its divisors is an integer number (4241202).

Almost surely, 2^44431420 is an apocalyptic number.

It is an amenable number.

44431420 is an abundant number, since it is smaller than the sum of its proper divisors (57357428).

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

44431420 is a wasteful number, since it uses less digits than its factorization.

44431420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201981 (or 201979 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 44431420 is about 6665.6897617576. The cubic root of 44431420 is about 354.1849183366.

Adding to 44431420 its reverse (2413444), we get a palindrome (46844864).

The spelling of 44431420 in words is "forty-four million, four hundred thirty-one thousand, four hundred twenty".