3478626 has 40 divisors (see below), whose sum is σ = 7906140. Its totient is φ = 1143072.

The previous prime is 3478621. The next prime is 3478627. The reversal of 3478626 is 6268743.

It can be written as a sum of positive squares in 2 ways, for example, as 2893401 + 585225 = 1701^2 + 765^2 .

It is a d-powerful number, because it can be written as 3⁴ + 4⁵ + 7⁶ + 8³ + 6⁸ + 2⁷ + 6⁸ .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3478621) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 17560 + ... + 17756.

Almost surely, 2^3478626 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3478626, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3953070).

3478626 is an abundant number, since it is smaller than the sum of its proper divisors (4427514).

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

3478626 is a wasteful number, since it uses less digits than its factorization.

3478626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320 (or 311 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 3478626 is about 1865.1075036040. The cubic root of 3478626 is about 151.5197503905.

The spelling of 3478626 in words is "three million, four hundred seventy-eight thousand, six hundred twenty-six".