431964398 has 8 divisors (see below), whose sum is σ = 648064920. Its totient is φ = 215942760.

The previous prime is 431964391. The next prime is 431964409. The reversal of 431964398 is 893469134.

It is a happy number.

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

It is a super-2 number, since 2×431964398² = 373186482279004808, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431964391) 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, 3293 + ... + 29576.

It is an arithmetic number, because the mean of its divisors is an integer number (81008115).

Almost surely, 2^431964398 is an apocalyptic number.

431964398 is a deficient number, since it is larger than the sum of its proper divisors (216100522).

431964398 is a wasteful number, since it uses less digits than its factorization.

431964398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39442.

The product of its digits is 559872, while the sum is 47.

The square root of 431964398 is about 20783.7532221685. The cubic root of 431964398 is about 755.9318628344.

The spelling of 431964398 in words is "four hundred thirty-one million, nine hundred sixty-four thousand, three hundred ninety-eight".