42980086 has 4 divisors (see below), whose sum is σ = 64470132. Its totient is φ = 21490042.

The previous prime is 42980057. The next prime is 42980089. The reversal of 42980086 is 68008924.

It is a semiprime because it is the product of two primes.

It is a plaindrome in base 12.

It is a nialpdrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42980089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10745020 + ... + 10745023.

It is an arithmetic number, because the mean of its divisors is an integer number (16117533).

Almost surely, 2^42980086 is an apocalyptic number.

42980086 is a deficient number, since it is larger than the sum of its proper divisors (21490046).

42980086 is a wasteful number, since it uses less digits than its factorization.

42980086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21490045.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 42980086 is about 6555.9199201943. The cubic root of 42980086 is about 350.2857149985.

The spelling of 42980086 in words is "forty-two million, nine hundred eighty thousand, eighty-six".