3256401 has 16 divisors (see below), whose sum is σ = 4670784. Its totient is φ = 2010624.

The previous prime is 3256399. The next prime is 3256411. The reversal of 3256401 is 1046523.

It is a happy number.

It is not a de Polignac number, because 3256401 - 2¹ = 3256399 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 2941 + ... + 3893.

It is an arithmetic number, because the mean of its divisors is an integer number (291924).

Almost surely, 2^3256401 is an apocalyptic number.

It is an amenable number.

3256401 is a deficient number, since it is larger than the sum of its proper divisors (1414383).

3256401 is a wasteful number, since it uses less digits than its factorization.

3256401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1040.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 3256401 is about 1804.5500824305. The cubic root of 3256401 is about 148.2219854795.

The spelling of 3256401 in words is "three million, two hundred fifty-six thousand, four hundred one".