2147856930 has 24 divisors (see below), whose sum is σ = 5584428252. Its totient is φ = 572761824.

The previous prime is 2147856883. The next prime is 2147856937. The reversal of 2147856930 is 396587412.

2147856930 is a `hidden beast` number, since 2 + 14 + 78 + 569 + 3 + 0 = 666.

2147856930 is digitally balanced in base 10, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2098281249 + 49575681 = 45807^2 + 7041^2 .

It is a super-2 number, since 2×2147856930² = 9226578783498049800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

2147856930 is strictly pandigital in base 10.

It is not an unprimeable number, because it can be changed into a prime (2147856937) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11932449 + ... + 11932628.

It is a 2-persistent number, because it is pandigital, and so is 2⋅2147856930 = 4295713860, but 3⋅2147856930 = 6443570790 is not.

Almost surely, 2^2147856930 is an apocalyptic number.

2147856930 is an abundant number, since it is smaller than the sum of its proper divisors (3436571322).

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

2147856930 is a wasteful number, since it uses less digits than its factorization.

2147856930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23865090 (or 23865087 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 2147856930 is about 46344.9773977720. The cubic root of 2147856930 is about 1290.2339038631.

The spelling of 2147856930 in words is "two billion, one hundred forty-seven million, eight hundred fifty-six thousand, nine hundred thirty".