3256479774 has 80 divisors (see below), whose sum is σ = 7624393920. Its totient is φ = 1037534400.

The previous prime is 3256479719. The next prime is 3256479839. The reversal of 3256479774 is 4779746523.

3256479774 is a `hidden beast` number, since 3 + 2 + 564 + 7 + 9 + 7 + 74 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3256479774.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 471067 + ... + 477929.

It is an arithmetic number, because the mean of its divisors is an integer number (95304924).

Almost surely, 2^3256479774 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3256479774, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3812196960).

3256479774 is an abundant number, since it is smaller than the sum of its proper divisors (4367914146).

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

3256479774 is a wasteful number, since it uses less digits than its factorization.

3256479774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7007 (or 6998 counting only the distinct ones).

The product of its digits is 8890560, while the sum is 54.

The square root of 3256479774 is about 57065.5743333930. The cubic root of 3256479774 is about 1482.2318065830.

The spelling of 3256479774 in words is "three billion, two hundred fifty-six million, four hundred seventy-nine thousand, seven hundred seventy-four".