42861130 has 32 divisors (see below), whose sum is σ = 85957200. Its totient is φ = 15278592.

The previous prime is 42861109. The next prime is 42861149. The reversal of 42861130 is 3116824.

It can be written as a sum of positive squares in 8 ways, for example, as 12467961 + 30393169 = 3531^2 + 5513^2 .

It is a junction number, because it is equal to n+sod(n) for n = 42861095 and 42861104.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1915 + ... + 9454.

Almost surely, 2^42861130 is an apocalyptic number.

42861130 is an abundant number, since it is smaller than the sum of its proper divisors (43096070).

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

42861130 is a wasteful number, since it uses less digits than its factorization.

42861130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11418.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 42861130 is about 6546.8412230632. The cubic root of 42861130 is about 349.9622544329.

Adding to 42861130 its reverse (3116824), we get a palindrome (45977954).

The spelling of 42861130 in words is "forty-two million, eight hundred sixty-one thousand, one hundred thirty".