3256431 has 8 divisors (see below), whose sum is σ = 4356144. Its totient is φ = 2163840.

The previous prime is 3256427. The next prime is 3256441. The reversal of 3256431 is 1346523.

It is a happy number.

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

It is not a de Polignac number, because 3256431 - 2² = 3256427 is a prime.

It is a super-2 number, since 2×3256431² = 21208685715522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3256411) 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, 600 + ... + 2621.

It is an arithmetic number, because the mean of its divisors is an integer number (544518).

Almost surely, 2^3256431 is an apocalyptic number.

3256431 is a deficient number, since it is larger than the sum of its proper divisors (1099713).

3256431 is a wasteful number, since it uses less digits than its factorization.

3256431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3561.

The product of its digits is 2160, while the sum is 24.

The square root of 3256431 is about 1804.5583947326. The cubic root of 3256431 is about 148.2224406493. Note that the first 3 decimals are identical.

The spelling of 3256431 in words is "three million, two hundred fifty-six thousand, four hundred thirty-one".