42240022 has 8 divisors (see below), whose sum is σ = 69120072. Its totient is φ = 19200000.

The previous prime is 42240017. The next prime is 42240031. The reversal of 42240022 is 22004224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 42239978 and 42240005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 959979 + ... + 960022.

It is an arithmetic number, because the mean of its divisors is an integer number (8640009).

Almost surely, 2^42240022 is an apocalyptic number.

42240022 is a deficient number, since it is larger than the sum of its proper divisors (26880050).

42240022 is a wasteful number, since it uses less digits than its factorization.

42240022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1920014.

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 42240022 is about 6499.2324162165. The cubic root of 42240022 is about 348.2635681093.

Adding to 42240022 its reverse (22004224), we get a palindrome (64244246).

The spelling of 42240022 in words is "forty-two million, two hundred forty thousand, twenty-two".