3251406 has 8 divisors (see below), whose sum is σ = 6502824. Its totient is φ = 1083800.

The previous prime is 3251399. The next prime is 3251407. The reversal of 3251406 is 6041523.

It is a happy number.

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

3251406 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3251407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 270945 + ... + 270956.

It is an arithmetic number, because the mean of its divisors is an integer number (812853).

Almost surely, 2^3251406 is an apocalyptic number.

3251406 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

3251406 is a wasteful number, since it uses less digits than its factorization.

3251406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541906.

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

The square root of 3251406 is about 1803.1655498040. The cubic root of 3251406 is about 148.1461606971.

Adding to 3251406 its reverse (6041523), we get a palindrome (9292929).

The spelling of 3251406 in words is "three million, two hundred fifty-one thousand, four hundred six".