3425138784 has 120 divisors (see below), whose sum is σ = 10665918648. Its totient is φ = 1074539520.

The previous prime is 3425138779. The next prime is 3425138809. The reversal of 3425138784 is 4878315243.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5199 + ... + 82929.

Almost surely, 2^3425138784 is an apocalyptic number.

3425138784 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3425138784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5332959324).

3425138784 is an abundant number, since it is smaller than the sum of its proper divisors (7240779864).

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

3425138784 is a wasteful number, since it uses less digits than its factorization.

3425138784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77770 (or 77753 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The square root of 3425138784 is about 58524.6852533185. The cubic root of 3425138784 is about 1507.3914854688.

The spelling of 3425138784 in words is "three billion, four hundred twenty-five million, one hundred thirty-eight thousand, seven hundred eighty-four".