431394 has 8 divisors (see below), whose sum is σ = 862800. Its totient is φ = 143796.

The previous prime is 431381. The next prime is 431399. The reversal of 431394 is 493134.

It is a sphenic number, since it is the product of 3 distinct primes.

431394 is an admirable number.

It is a super-2 number, since 2×431394² = 372201566472, which contains 22 as substring.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 431394.

It is not an unprimeable number, because it can be changed into a prime (431399) by changing a digit.

431394 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35944 + ... + 35955.

It is an arithmetic number, because the mean of its divisors is an integer number (107850).

2⁴³¹³⁹⁴ is an apocalyptic number.

431394 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

431394 is a wasteful number, since it uses less digits than its factorization.

431394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71904.

The product of its digits is 1296, while the sum is 24.

The square root of 431394 is about 656.8059074034. The cubic root of 431394 is about 75.5598986674.

The spelling of 431394 in words is "four hundred thirty-one thousand, three hundred ninety-four".