42693982 has 4 divisors (see below), whose sum is σ = 64040976. Its totient is φ = 21346990.

The previous prime is 42693947. The next prime is 42694027. The reversal of 42693982 is 28939624.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10673494 + ... + 10673497.

It is an arithmetic number, because the mean of its divisors is an integer number (16010244).

Almost surely, 2^42693982 is an apocalyptic number.

42693982 is a deficient number, since it is larger than the sum of its proper divisors (21346994).

42693982 is a wasteful number, since it uses less digits than its factorization.

42693982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21346993.

The product of its digits is 186624, while the sum is 43.

The square root of 42693982 is about 6534.0632075302. The cubic root of 42693982 is about 349.5067391795.

The spelling of 42693982 in words is "forty-two million, six hundred ninety-three thousand, nine hundred eighty-two".