1402432231 has 2 divisors, whose sum is σ = 1402432232. Its totient is φ = 1402432230.

The previous prime is 1402432217. The next prime is 1402432267. The reversal of 1402432231 is 1322342041.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1402432231 is a prime.

It is a super-2 number, since 2×1402432231² = 3933632325095274722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1402432211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 701216115 + 701216116.

It is an arithmetic number, because the mean of its divisors is an integer number (701216116).

Almost surely, 2^1402432231 is an apocalyptic number.

1402432231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1402432231 is an equidigital number, since it uses as much as digits as its factorization.

1402432231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 1402432231 is about 37449.0618173540. The cubic root of 1402432231 is about 1119.3364029760.

Adding to 1402432231 its reverse (1322342041), we get a palindrome (2724774272).

The spelling of 1402432231 in words is "one billion, four hundred two million, four hundred thirty-two thousand, two hundred thirty-one".