3256400 has 60 divisors (see below), whose sum is σ = 8948832. Its totient is φ = 1115520.

The previous prime is 3256399. The next prime is 3256411. The reversal of 3256400 is 46523.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2219 + ... + 3381.

Almost surely, 2^3256400 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3256400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4474416).

3256400 is an abundant number, since it is smaller than the sum of its proper divisors (5692432).

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

3256400 is a wasteful number, since it uses less digits than its factorization.

3256400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1188 (or 1177 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 3256400 is about 1804.5498053531. The cubic root of 3256400 is about 148.2219703071.

The spelling of 3256400 in words is "three million, two hundred fifty-six thousand, four hundred".