1424444431 has 4 divisors (see below), whose sum is σ = 1424520000. Its totient is φ = 1424368864.

The previous prime is 1424444429. The next prime is 1424444471. The reversal of 1424444431 is 1344444241.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1424444431 - 2¹ = 1424444429 is a prime.

It is a super-2 number, since 2×1424444431² = 4058083874013827522, 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 = 1424444393 and 1424444402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1424444471) 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, 16215 + ... + 55783.

It is an arithmetic number, because the mean of its divisors is an integer number (356130000).

Almost surely, 2^1424444431 is an apocalyptic number.

1424444431 is a deficient number, since it is larger than the sum of its proper divisors (75569).

1424444431 is an equidigital number, since it uses as much as digits as its factorization.

1424444431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75568.

The product of its digits is 24576, while the sum is 31.

The square root of 1424444431 is about 37741.8127678044. The cubic root of 1424444431 is about 1125.1622958613.

Adding to 1424444431 its reverse (1344444241), we get a palindrome (2768888672).

The spelling of 1424444431 in words is "one billion, four hundred twenty-four million, four hundred forty-four thousand, four hundred thirty-one".