44430431 has 4 divisors (see below), whose sum is σ = 44599632. Its totient is φ = 44261232.

The previous prime is 44430427. The next prime is 44430433. The reversal of 44430431 is 13403444.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 44430431 - 2² = 44430427 is a prime.

It is a super-2 number, since 2×44430431² = 3948126397691522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 44430397 and 44430406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44430433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84206 + ... + 84731.

It is an arithmetic number, because the mean of its divisors is an integer number (11149908).

Almost surely, 2^44430431 is an apocalyptic number.

44430431 is a deficient number, since it is larger than the sum of its proper divisors (169201).

44430431 is a wasteful number, since it uses less digits than its factorization.

44430431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169200.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 44430431 is about 6665.6155754739. The cubic root of 44430431 is about 354.1822903804.

Adding to 44430431 its reverse (13403444), we get a palindrome (57833875).

The spelling of 44430431 in words is "forty-four million, four hundred thirty thousand, four hundred thirty-one".