321414431 has 8 divisors (see below), whose sum is σ = 364356720. Its totient is φ = 281074752.

The previous prime is 321414409. The next prime is 321414493. The reversal of 321414431 is 134414123.

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

It is not a de Polignac number, because 321414431 - 2⁶ = 321414367 is a prime.

It is a super-2 number, since 2×321414431² = 206614472910107522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 321414397 and 321414406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321414031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 650390 + ... + 650883.

It is an arithmetic number, because the mean of its divisors is an integer number (45544590).

Almost surely, 2^321414431 is an apocalyptic number.

321414431 is a deficient number, since it is larger than the sum of its proper divisors (42942289).

321414431 is a wasteful number, since it uses less digits than its factorization.

321414431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1301305.

The product of its digits is 1152, while the sum is 23.

The square root of 321414431 is about 17928.0347779672. The cubic root of 321414431 is about 684.9966654072.

Adding to 321414431 its reverse (134414123), we get a palindrome (455828554).

The spelling of 321414431 in words is "three hundred twenty-one million, four hundred fourteen thousand, four hundred thirty-one".