3478459656 has 128 divisors (see below), whose sum is σ = 10799308800. Its totient is φ = 911139840.

The previous prime is 3478459631. The next prime is 3478459661. The reversal of 3478459656 is 6569548743.

3478459656 is nontrivially palindromic in base 11.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a junction number, because it is equal to n+sod(n) for n = 3478459596 and 3478459605.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 81376 + ... + 116528.

It is an arithmetic number, because the mean of its divisors is an integer number (84369600).

Almost surely, 2^3478459656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3478459656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5399654400).

3478459656 is an abundant number, since it is smaller than the sum of its proper divisors (7320849144).

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

3478459656 is a wasteful number, since it uses less digits than its factorization.

3478459656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35219 (or 35215 counting only the distinct ones).

The product of its digits is 21772800, while the sum is 57.

The square root of 3478459656 is about 58978.4677318765. The cubic root of 3478459656 is about 1515.1733518375.

The spelling of 3478459656 in words is "three billion, four hundred seventy-eight million, four hundred fifty-nine thousand, six hundred fifty-six".