42240322 has 8 divisors (see below), whose sum is σ = 63395856. Its totient is φ = 21108372.

The previous prime is 42240313. The next prime is 42240323. The reversal of 42240322 is 22304224.

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

It is a self number, because there is not a number n which added to its sum of digits gives 42240322.

It is not an unprimeable number, because it can be changed into a prime (42240323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 388 + ... + 9199.

It is an arithmetic number, because the mean of its divisors is an integer number (7924482).

Almost surely, 2^42240322 is an apocalyptic number.

42240322 is a deficient number, since it is larger than the sum of its proper divisors (21155534).

42240322 is a wasteful number, since it uses less digits than its factorization.

42240322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11792.

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 42240322 is about 6499.2554958241. The cubic root of 42240322 is about 348.2643925946.

Adding to 42240322 its reverse (22304224), we get a palindrome (64544546).

The spelling of 42240322 in words is "forty-two million, two hundred forty thousand, three hundred twenty-two".