6442372130 has 16 divisors (see below), whose sum is σ = 11599330680. Its totient is φ = 2576268672.

The previous prime is 6442372117. The next prime is 6442372141. The reversal of 6442372130 is 312732446.

It can be written as a sum of positive squares in 4 ways, for example, as 4901260081 + 1541112049 = 70009^2 + 39257^2 .

It is a super-2 number, since 2×6442372130² = 83008317322801473800, 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, 44315 + ... + 121854.

Almost surely, 2^6442372130 is an apocalyptic number.

6442372130 is a deficient number, since it is larger than the sum of its proper divisors (5156958550).

6442372130 is a wasteful number, since it uses less digits than its factorization.

6442372130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170053.

The product of its (nonzero) digits is 24192, while the sum is 32.

The square root of 6442372130 is about 80264.3889280919. The cubic root of 6442372130 is about 1860.7238992497.

The spelling of 6442372130 in words is "six billion, four hundred forty-two million, three hundred seventy-two thousand, one hundred thirty".