3256138 has 8 divisors (see below), whose sum is σ = 5003460. Its totient is φ = 1588320.

The previous prime is 3256093. The next prime is 3256171. The reversal of 3256138 is 8316523.

It can be written as a sum of positive squares in 2 ways, for example, as 3250809 + 5329 = 1803^2 + 73^2 .

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

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19773 + ... + 19936.

Almost surely, 2^3256138 is an apocalyptic number.

3256138 is a deficient number, since it is larger than the sum of its proper divisors (1747322).

3256138 is a wasteful number, since it uses less digits than its factorization.

3256138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39752.

The product of its digits is 4320, while the sum is 28.

The square root of 3256138 is about 1804.4772096095. The cubic root of 3256138 is about 148.2179950381.

The spelling of 3256138 in words is "three million, two hundred fifty-six thousand, one hundred thirty-eight".