42646022 has 4 divisors (see below), whose sum is σ = 63969036. Its totient is φ = 21323010.

The previous prime is 42646003. The next prime is 42646031. The reversal of 42646022 is 22064624.

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

It is a junction number, because it is equal to n+sod(n) for n = 42645982 and 42646000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10661504 + ... + 10661507.

It is an arithmetic number, because the mean of its divisors is an integer number (15992259).

Almost surely, 2^42646022 is an apocalyptic number.

42646022 is a deficient number, since it is larger than the sum of its proper divisors (21323014).

42646022 is a wasteful number, since it uses less digits than its factorization.

42646022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21323013.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 42646022 is about 6530.3921781161. The cubic root of 42646022 is about 349.3758181225.

The spelling of 42646022 in words is "forty-two million, six hundred forty-six thousand, twenty-two".