429278431 has 2 divisors, whose sum is σ = 429278432. Its totient is φ = 429278430.

The previous prime is 429278413. The next prime is 429278453. The reversal of 429278431 is 134872924.

Together with previous prime (429278413) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 429278431 - 2¹⁹ = 428754143 is a prime.

It is a super-2 number, since 2×429278431² = 368559942643643522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (429278461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214639215 + 214639216.

It is an arithmetic number, because the mean of its divisors is an integer number (214639216).

Almost surely, 2^429278431 is an apocalyptic number.

429278431 is a deficient number, since it is larger than the sum of its proper divisors (1).

429278431 is an equidigital number, since it uses as much as digits as its factorization.

429278431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96768, while the sum is 40.

The square root of 429278431 is about 20719.0354746547. The cubic root of 429278431 is about 754.3618021041.

The spelling of 429278431 in words is "four hundred twenty-nine million, two hundred seventy-eight thousand, four hundred thirty-one".