42543076 has 24 divisors (see below), whose sum is σ = 76822200. Its totient is φ = 20601600.

The previous prime is 42543073. The next prime is 42543079. The reversal of 42543076 is 67034524.

It is an interprime number because it is at equal distance from previous prime (42543073) and next prime (42543079).

It can be written as a sum of positive squares in 4 ways, for example, as 9180900 + 33362176 = 3030^2 + 5776^2 .

It is not an unprimeable number, because it can be changed into a prime (42543073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23566 + ... + 25306.

It is an arithmetic number, because the mean of its divisors is an integer number (3200925).

Almost surely, 2^42543076 is an apocalyptic number.

It is an amenable number.

42543076 is a deficient number, since it is larger than the sum of its proper divisors (34279124).

42543076 is a wasteful number, since it uses less digits than its factorization.

42543076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1935 (or 1933 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 31.

The square root of 42543076 is about 6522.5053468740. The cubic root of 42543076 is about 349.0944646218.

The spelling of 42543076 in words is "forty-two million, five hundred forty-three thousand, seventy-six".