3420042420 has 48 divisors (see below), whose sum is σ = 9779874048. Its totient is φ = 892606080.

The previous prime is 3420042401. The next prime is 3420042421. The reversal of 3420042420 is 242400243.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3420042421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 603571 + ... + 609210.

It is an arithmetic number, because the mean of its divisors is an integer number (203747376).

Almost surely, 2^3420042420 is an apocalyptic number.

3420042420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3420042420 is an abundant number, since it is smaller than the sum of its proper divisors (6359831628).

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

3420042420 is a wasteful number, since it uses less digits than its factorization.

3420042420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1212840 (or 1212838 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 3420042420 is about 58481.1287510766. The cubic root of 3420042420 is about 1506.6434837541.

Adding to 3420042420 its reverse (242400243), we get a palindrome (3662442663).

The spelling of 3420042420 in words is "three billion, four hundred twenty million, forty-two thousand, four hundred twenty".