431370431 has 4 divisors (see below), whose sum is σ = 431508312. Its totient is φ = 431232552.

The previous prime is 431370421. The next prime is 431370437. The reversal of 431370431 is 134073134.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 431370431 - 2¹⁴ = 431354047 is a prime.

It is a super-2 number, since 2×431370431² = 372160897482251522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 431370431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431370437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64136 + ... + 70541.

It is an arithmetic number, because the mean of its divisors is an integer number (107877078).

Almost surely, 2^431370431 is an apocalyptic number.

431370431 is a deficient number, since it is larger than the sum of its proper divisors (137881).

431370431 is a wasteful number, since it uses less digits than its factorization.

431370431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137880.

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 431370431 is about 20769.4590926196. The cubic root of 431370431 is about 755.5852258301.

The spelling of 431370431 in words is "four hundred thirty-one million, three hundred seventy thousand, four hundred thirty-one".