3420056780 has 48 divisors (see below), whose sum is σ = 8211556416. Its totient is φ = 1172102400.

The previous prime is 3420056771. The next prime is 3420056819. The reversal of 3420056780 is 876500243.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 3420056780.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 539630 + ... + 545930.

It is an arithmetic number, because the mean of its divisors is an integer number (171074092).

Almost surely, 2^3420056780 is an apocalyptic number.

It is an amenable number.

3420056780 is an abundant number, since it is smaller than the sum of its proper divisors (4791499636).

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

3420056780 is a wasteful number, since it uses less digits than its factorization.

3420056780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10194 (or 10192 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 3420056780 is about 58481.2515255958. The cubic root of 3420056780 is about 1506.6455924385.

The spelling of 3420056780 in words is "three billion, four hundred twenty million, fifty-six thousand, seven hundred eighty".