3084645720 has 128 divisors (see below), whose sum is σ = 10178058240. Its totient is φ = 743124480.

The previous prime is 3084645709. The next prime is 3084645727. The reversal of 3084645720 is 275464803.

It is a happy number.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3084645727) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52285 + ... + 94355.

It is an arithmetic number, because the mean of its divisors is an integer number (79516080).

Almost surely, 2^3084645720 is an apocalyptic number.

3084645720 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3084645720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5089029120).

3084645720 is an abundant number, since it is smaller than the sum of its proper divisors (7093412520).

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

3084645720 is a wasteful number, since it uses less digits than its factorization.

3084645720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42145 (or 42141 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 39.

The square root of 3084645720 is about 55539.5869628142. The cubic root of 3084645720 is about 1455.6884308465.

The spelling of 3084645720 in words is "three billion, eighty-four million, six hundred forty-five thousand, seven hundred twenty".