2142245320 has 32 divisors (see below), whose sum is σ = 4824084600. Its totient is φ = 856181248.

The previous prime is 2142245309. The next prime is 2142245353. The reversal of 2142245320 is 235422412.

It can be written as a sum of positive squares in 4 ways, for example, as 2003994756 + 138250564 = 44766^2 + 11758^2 .

It is a super-2 number, since 2×2142245320² = 9178430022123804800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27372 + ... + 70948.

Almost surely, 2^2142245320 is an apocalyptic number.

2142245320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2142245320 is an abundant number, since it is smaller than the sum of its proper divisors (2681839280).

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

2142245320 is a wasteful number, since it uses less digits than its factorization.

2142245320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44817 (or 44813 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 2142245320 is about 46284.3960747032. The cubic root of 2142245320 is about 1289.1092783500.

Adding to 2142245320 its reverse (235422412), we get a palindrome (2377667732).

The spelling of 2142245320 in words is "two billion, one hundred forty-two million, two hundred forty-five thousand, three hundred twenty".