42722606 has 4 divisors (see below), whose sum is σ = 64083912. Its totient is φ = 21361302.

The previous prime is 42722591. The next prime is 42722609. The reversal of 42722606 is 60622724.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42722609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10680650 + ... + 10680653.

It is an arithmetic number, because the mean of its divisors is an integer number (16020978).

Almost surely, 2^42722606 is an apocalyptic number.

42722606 is a deficient number, since it is larger than the sum of its proper divisors (21361306).

42722606 is a wasteful number, since it uses less digits than its factorization.

42722606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21361305.

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 42722606 is about 6536.2532080696. The cubic root of 42722606 is about 349.5848301695.

The spelling of 42722606 in words is "forty-two million, seven hundred twenty-two thousand, six hundred six".