2147020456 has 24 divisors (see below), whose sum is σ = 4682915370. Its totient is φ = 920151456.

The previous prime is 2147020441. The next prime is 2147020493. The reversal of 2147020456 is 6540207412.

It can be written as a sum of positive squares in only one way, i.e., 2109932356 + 37088100 = 45934^2 + 6090^2 .

It is a nialpdrome in base 15.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2738155 + ... + 2738938.

Almost surely, 2^2147020456 is an apocalyptic number.

It is an amenable number.

2147020456 is an abundant number, since it is smaller than the sum of its proper divisors (2535894914).

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

2147020456 is a wasteful number, since it uses less digits than its factorization.

2147020456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5477113 (or 5477102 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 2147020456 is about 46335.9520890636. The cubic root of 2147020456 is about 1290.0663900291.

Adding to 2147020456 its reverse (6540207412), we get a palindrome (8687227868).

The spelling of 2147020456 in words is "two billion, one hundred forty-seven million, twenty thousand, four hundred fifty-six".