431340029 has 4 divisors (see below), whose sum is σ = 431465184. Its totient is φ = 431214876.

The previous prime is 431339977. The next prime is 431340047. The reversal of 431340029 is 920043134.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 431340029 - 2⁸ = 431339773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431340529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57257 + ... + 64350.

It is an arithmetic number, because the mean of its divisors is an integer number (107866296).

Almost surely, 2^431340029 is an apocalyptic number.

It is an amenable number.

431340029 is a deficient number, since it is larger than the sum of its proper divisors (125155).

431340029 is a wasteful number, since it uses less digits than its factorization.

431340029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125154.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 431340029 is about 20768.7271877696. The cubic root of 431340029 is about 755.5674747743.

The spelling of 431340029 in words is "four hundred thirty-one million, three hundred forty thousand, twenty-nine".