3420020 has 24 divisors (see below), whose sum is σ = 7219968. Its totient is φ = 1360800.

The previous prime is 3419963. The next prime is 3420023. The reversal of 3420020 is 200243.

It is a junction number, because it is equal to n+sod(n) for n = 3419983 and 3420010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3420023) 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, 5105 + ... + 5735.

It is an arithmetic number, because the mean of its divisors is an integer number (300832).

Almost surely, 2^3420020 is an apocalyptic number.

It is an amenable number.

3420020 is an abundant number, since it is smaller than the sum of its proper divisors (3799948).

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

3420020 is a wasteful number, since it uses less digits than its factorization.

3420020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 911 (or 909 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 11.

The square root of 3420020 is about 1849.3296082635. The cubic root of 3420020 is about 150.6640191493.

Adding to 3420020 its reverse (200243), we get a palindrome (3620263).

The spelling of 3420020 in words is "three million, four hundred twenty thousand, twenty".