1044442431 has 24 divisors (see below), whose sum is σ = 1587890304. Its totient is φ = 685891800.

The previous prime is 1044442423. The next prime is 1044442439. The reversal of 1044442431 is 1342444401.

It is an interprime number because it is at equal distance from previous prime (1044442423) and next prime (1044442439).

It is not a de Polignac number, because 1044442431 - 2³ = 1044442423 is a prime.

It is a super-2 number, since 2×1044442431² = 2181719983346379522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1044442395 and 1044442404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1044442439) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15795 + ... + 48356.

It is an arithmetic number, because the mean of its divisors is an integer number (66162096).

Almost surely, 2^1044442431 is an apocalyptic number.

1044442431 is a deficient number, since it is larger than the sum of its proper divisors (543447873).

1044442431 is an frugal number, since it uses more digits than its factorization.

1044442431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64233 (or 64221 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

The square root of 1044442431 is about 32317.8345654532. The cubic root of 1044442431 is about 1014.5999478227.

Adding to 1044442431 its reverse (1342444401), we get a palindrome (2386886832).

The spelling of 1044442431 in words is "one billion, forty-four million, four hundred forty-two thousand, four hundred thirty-one".