3420270 has 96 divisors (see below), whose sum is σ = 10445760. Its totient is φ = 760320.

The previous prime is 3420257. The next prime is 3420271. The reversal of 3420270 is 720243.

It is a happy number.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3420271) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 38386 + ... + 38474.

It is an arithmetic number, because the mean of its divisors is an integer number (108810).

Almost surely, 2^3420270 is an apocalyptic number.

3420270 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3420270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5222880).

3420270 is an abundant number, since it is smaller than the sum of its proper divisors (7025490).

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

3420270 is a wasteful number, since it uses less digits than its factorization.

3420270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170 (or 167 counting only the distinct ones).

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

The square root of 3420270 is about 1849.3971990895. The cubic root of 3420270 is about 150.6676901889.

The spelling of 3420270 in words is "three million, four hundred twenty thousand, two hundred seventy".