1400322431 has 2 divisors, whose sum is σ = 1400322432. Its totient is φ = 1400322430.

The previous prime is 1400322403. The next prime is 1400322437. The reversal of 1400322431 is 1342230041.

It is a strong prime.

It is an emirp because it is prime and its reverse (1342230041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1400322431 - 2¹⁰ = 1400321407 is a prime.

It is a super-2 number, since 2×1400322431² = 3921805821523499522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1400322437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700161215 + 700161216.

It is an arithmetic number, because the mean of its divisors is an integer number (700161216).

Almost surely, 2^1400322431 is an apocalyptic number.

1400322431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1400322431 is an equidigital number, since it uses as much as digits as its factorization.

1400322431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1400322431 is about 37420.8822851627. The cubic root of 1400322431 is about 1118.7748164402.

Adding to 1400322431 its reverse (1342230041), we get a palindrome (2742552472).

The spelling of 1400322431 in words is "one billion, four hundred million, three hundred twenty-two thousand, four hundred thirty-one".