3398538 has 64 divisors (see below), whose sum is σ = 8491392. Its totient is φ = 890880.

The previous prime is 3398497. The next prime is 3398543. The reversal of 3398538 is 8358933.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 3398496 and 3398505.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14470 + ... + 14702.

It is an arithmetic number, because the mean of its divisors is an integer number (132678).

Almost surely, 2^3398538 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3398538, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4245696).

3398538 is an abundant number, since it is smaller than the sum of its proper divisors (5092854).

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

3398538 is a wasteful number, since it uses less digits than its factorization.

3398538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279.

The product of its digits is 77760, while the sum is 39.

The square root of 3398538 is about 1843.5124084204. The cubic root of 3398538 is about 150.3479035746.

The spelling of 3398538 in words is "three million, three hundred ninety-eight thousand, five hundred thirty-eight".