3256167438 has 128 divisors (see below), whose sum is σ = 7644026880. Its totient is φ = 1039262400.

The previous prime is 3256167419. The next prime is 3256167443. The reversal of 3256167438 is 8347616523.

3256167438 is a `hidden beast` number, since 3 + 2 + 56 + 167 + 438 = 666.

It is an alternating number because its digits alternate between odd and even.

Its product of digits (725760) is a multiple of the sum of its prime divisors (384).

It is a junction number, because it is equal to n+sod(n) for n = 3256167393 and 3256167402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12015243 + ... + 12015513.

It is an arithmetic number, because the mean of its divisors is an integer number (59718960).

Almost surely, 2^3256167438 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3256167438, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3822013440).

3256167438 is an abundant number, since it is smaller than the sum of its proper divisors (4387859442).

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

3256167438 is an equidigital number, since it uses as much as digits as its factorization.

3256167438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402 (or 384 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The square root of 3256167438 is about 57062.8376266025. The cubic root of 3256167438 is about 1482.1844170512.

It can be divided in two parts, 32561 and 67438, that added together give a palindrome (99999).

The spelling of 3256167438 in words is "three billion, two hundred fifty-six million, one hundred sixty-seven thousand, four hundred thirty-eight".