3378420 has 54 divisors (see below), whose sum is σ = 10323222. Its totient is φ = 894336.

The previous prime is 3378391. The next prime is 3378439. The reversal of 3378420 is 248733.

It can be written as a sum of positive squares in 3 ways, for example, as 535824 + 2842596 = 732^2 + 1686^2 .

It is a super-2 number, since 2×3378420² = 22827443392800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 24592 + ... + 24728.

Almost surely, 2^3378420 is an apocalyptic number.

3378420 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 3378420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5161611).

3378420 is an abundant number, since it is smaller than the sum of its proper divisors (6944802).

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

3378420 is a wasteful number, since it uses less digits than its factorization.

3378420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289 (or 147 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 3378420 is about 1838.0478775048. The cubic root of 3378420 is about 150.0506495622.

The spelling of 3378420 in words is "three million, three hundred seventy-eight thousand, four hundred twenty".