3420402 has 16 divisors (see below), whose sum is σ = 6886272. Its totient is φ = 1132560.

The previous prime is 3420401. The next prime is 3420409. The reversal of 3420402 is 2040243.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (3420401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 874 + ... + 2757.

It is an arithmetic number, because the mean of its divisors is an integer number (430392).

Almost surely, 2^3420402 is an apocalyptic number.

3420402 is an abundant number, since it is smaller than the sum of its proper divisors (3465870).

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

3420402 is a wasteful number, since it uses less digits than its factorization.

3420402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3793.

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 3420402 is about 1849.4328860491. The cubic root of 3420402 is about 150.6696284257.

Adding to 3420402 its reverse (2040243), we get a palindrome (5460645).

The spelling of 3420402 in words is "three million, four hundred twenty thousand, four hundred two".