1400465431 has 2 divisors, whose sum is σ = 1400465432. Its totient is φ = 1400465430.

The previous prime is 1400465411. The next prime is 1400465461. The reversal of 1400465431 is 1345640041.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1400465431 is a prime.

It is a super-2 number, since 2×1400465431² = 3922606846852031522, 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 1400465431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1400465401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700232715 + 700232716.

It is an arithmetic number, because the mean of its divisors is an integer number (700232716).

Almost surely, 2^1400465431 is an apocalyptic number.

1400465431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1400465431 is an equidigital number, since it uses as much as digits as its factorization.

1400465431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 1400465431 is about 37422.7929342533. The cubic root of 1400465431 is about 1118.8128979920.

The spelling of 1400465431 in words is "one billion, four hundred million, four hundred sixty-five thousand, four hundred thirty-one".