1424402731 has 2 divisors, whose sum is σ = 1424402732. Its totient is φ = 1424402730.

The previous prime is 1424402717. The next prime is 1424402737. The reversal of 1424402731 is 1372044241.

It is a strong prime.

It is an emirp because it is prime and its reverse (1372044241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1424402731 - 2⁵ = 1424402699 is a prime.

It is a super-2 number, since 2×1424402731² = 4057846280160516722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1424402731.

It is not a weakly prime, because it can be changed into another prime (1424402737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 712201365 + 712201366.

It is an arithmetic number, because the mean of its divisors is an integer number (712201366).

Almost surely, 2^1424402731 is an apocalyptic number.

1424402731 is a deficient number, since it is larger than the sum of its proper divisors (1).

1424402731 is an equidigital number, since it uses as much as digits as its factorization.

1424402731 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 1424402731 is about 37741.2603260675. The cubic root of 1424402731 is about 1125.1513162062.

Adding to 1424402731 its reverse (1372044241), we get a palindrome (2796446972).

The spelling of 1424402731 in words is "one billion, four hundred twenty-four million, four hundred two thousand, seven hundred thirty-one".