3420784528 has 80 divisors (see below), whose sum is σ = 7859814400. Its totient is φ = 1411344000.

The previous prime is 3420784519. The next prime is 3420784537. The reversal of 3420784528 is 8254870243.

It is an interprime number because it is at equal distance from previous prime (3420784519) and next prime (3420784537).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 688453 + ... + 693403.

It is an arithmetic number, because the mean of its divisors is an integer number (98247680).

Almost surely, 2^3420784528 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3420784528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3929907200).

3420784528 is an abundant number, since it is smaller than the sum of its proper divisors (4439029872).

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

3420784528 is a wasteful number, since it uses less digits than its factorization.

3420784528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5196 (or 5190 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 43.

The square root of 3420784528 is about 58487.4732571001. The cubic root of 3420784528 is about 1506.7524503676.

The spelling of 3420784528 in words is "three billion, four hundred twenty million, seven hundred eighty-four thousand, five hundred twenty-eight".