3398520 has 64 divisors (see below), whose sum is σ = 10321920. Its totient is φ = 895104.

The previous prime is 3398497. The next prime is 3398543. The reversal of 3398520 is 258933.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3398497) and next prime (3398543).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15129 + ... + 15351.

It is an arithmetic number, because the mean of its divisors is an integer number (161280).

Almost surely, 2^3398520 is an apocalyptic number.

3398520 is a gapful number since it is divisible by the number (30) 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 3398520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5160960).

3398520 is an abundant number, since it is smaller than the sum of its proper divisors (6923400).

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

3398520 is a wasteful number, since it uses less digits than its factorization.

3398520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364 (or 360 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 3398520 is about 1843.5075264289. The cubic root of 3398520 is about 150.3476381402.

The spelling of 3398520 in words is "three million, three hundred ninety-eight thousand, five hundred twenty".