42940718 has 4 divisors (see below), whose sum is σ = 64411080. Its totient is φ = 21470358.

The previous prime is 42940697. The next prime is 42940721. The reversal of 42940718 is 81704924.

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

It is a Curzon number.

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, 10735178 + ... + 10735181.

It is an arithmetic number, because the mean of its divisors is an integer number (16102770).

Almost surely, 2^42940718 is an apocalyptic number.

42940718 is a deficient number, since it is larger than the sum of its proper divisors (21470362).

42940718 is a wasteful number, since it uses less digits than its factorization.

42940718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21470361.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 42940718 is about 6552.9167551557. The cubic root of 42940718 is about 350.1787332012.

The spelling of 42940718 in words is "forty-two million, nine hundred forty thousand, seven hundred eighteen".