3420342 has 48 divisors (see below), whose sum is σ = 7965360. Its totient is φ = 1057536.

The previous prime is 3420341. The next prime is 3420367. The reversal of 3420342 is 2430243.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3420341) 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, 24898 + ... + 25034.

It is an arithmetic number, because the mean of its divisors is an integer number (165945).

Almost surely, 2^3420342 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3420342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3982680).

3420342 is an abundant number, since it is smaller than the sum of its proper divisors (4545018).

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

3420342 is a wasteful number, since it uses less digits than its factorization.

3420342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237 (or 234 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 3420342 is about 1849.4166647892. The cubic root of 3420342 is about 150.6687474152.

Multiplying 3420342 by its sum of digits (18), we get a triangular number (61566156 = T₁₁₀₉₆).

Adding to 3420342 its reverse (2430243), we get a palindrome (5850585).

Subtracting from 3420342 its reverse (2430243), we obtain a palindrome (990099).

The spelling of 3420342 in words is "three million, four hundred twenty thousand, three hundred forty-two".