3470220 has 72 divisors (see below), whose sum is σ = 11343696. Its totient is φ = 853632.

The previous prime is 3470213. The next prime is 3470221. The reversal of 3470220 is 220743.

It is a happy number.

3470220 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 3470193 and 3470202.

It is not an unprimeable number, because it can be changed into a prime (3470221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1599 + ... + 3081.

Almost surely, 2^3470220 is an apocalyptic number.

3470220 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 3470220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5671848).

3470220 is an abundant number, since it is smaller than the sum of its proper divisors (7873476).

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

3470220 is a wasteful number, since it uses less digits than its factorization.

3470220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1511 (or 1506 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 3470220 is about 1862.8526511778. The cubic root of 3470220 is about 151.3976042391.

Adding to 3470220 its reverse (220743), we get a palindrome (3690963).

The spelling of 3470220 in words is "three million, four hundred seventy thousand, two hundred twenty".