42347822 has 12 divisors (see below), whose sum is σ = 69821808. Its totient is φ = 19248900.

The previous prime is 42347821. The next prime is 42347839. The reversal of 42347822 is 22874324.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42347821) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 87254 + ... + 87737.

It is an arithmetic number, because the mean of its divisors is an integer number (5818484).

Almost surely, 2^42347822 is an apocalyptic number.

42347822 is a deficient number, since it is larger than the sum of its proper divisors (27473986).

42347822 is a wasteful number, since it uses less digits than its factorization.

42347822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175015 (or 175004 counting only the distinct ones).

The product of its digits is 21504, while the sum is 32.

The square root of 42347822 is about 6507.5204187156. The cubic root of 42347822 is about 348.5595821629.

The spelling of 42347822 in words is "forty-two million, three hundred forty-seven thousand, eight hundred twenty-two".