3420904820 has 48 divisors (see below), whose sum is σ = 7302113280. Its totient is φ = 1346018304.

The previous prime is 3420904789. The next prime is 3420904829. The reversal of 3420904820 is 284090243.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3420904829) 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, 318701 + ... + 329259.

It is an arithmetic number, because the mean of its divisors is an integer number (152127360).

Almost surely, 2^3420904820 is an apocalyptic number.

It is an amenable number.

3420904820 is an abundant number, since it is smaller than the sum of its proper divisors (3881208460).

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

3420904820 is a wasteful number, since it uses less digits than its factorization.

3420904820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10832 (or 10830 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 3420904820 is about 58488.5016050163. The cubic root of 3420904820 is about 1506.7701118270.

The spelling of 3420904820 in words is "three billion, four hundred twenty million, nine hundred four thousand, eight hundred twenty".