42702706 has 4 divisors (see below), whose sum is σ = 64054062. Its totient is φ = 21351352.

The previous prime is 42702701. The next prime is 42702707. The reversal of 42702706 is 60720724.

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

It can be written as a sum of positive squares in only one way, i.e., 31753225 + 10949481 = 5635^2 + 3309^2 .

It is not an unprimeable number, because it can be changed into a prime (42702701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10675675 + ... + 10675678.

Almost surely, 2^42702706 is an apocalyptic number.

42702706 is a deficient number, since it is larger than the sum of its proper divisors (21351356).

42702706 is a wasteful number, since it uses less digits than its factorization.

42702706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21351355.

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 42702706 is about 6534.7307519132. The cubic root of 42702706 is about 349.5305433863.

The spelling of 42702706 in words is "forty-two million, seven hundred two thousand, seven hundred six".