42823622 has 4 divisors (see below), whose sum is σ = 64235436. Its totient is φ = 21411810.

The previous prime is 42823621. The next prime is 42823661. The reversal of 42823622 is 22632824.

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 (42823621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10705904 + ... + 10705907.

It is an arithmetic number, because the mean of its divisors is an integer number (16058859).

Almost surely, 2^42823622 is an apocalyptic number.

42823622 is a deficient number, since it is larger than the sum of its proper divisors (21411814).

42823622 is a wasteful number, since it uses less digits than its factorization.

42823622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21411813.

The product of its digits is 9216, while the sum is 29.

The square root of 42823622 is about 6543.9760085135. The cubic root of 42823622 is about 349.8601400378.

The spelling of 42823622 in words is "forty-two million, eight hundred twenty-three thousand, six hundred twenty-two".