42140222 has 8 divisors (see below), whose sum is σ = 65249472. Its totient is φ = 20390400.

The previous prime is 42140201. The next prime is 42140237. The reversal of 42140222 is 22204124.

It is a happy number.

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 42140222.

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, 339779 + ... + 339902.

It is an arithmetic number, because the mean of its divisors is an integer number (8156184).

Almost surely, 2^42140222 is an apocalyptic number.

42140222 is a deficient number, since it is larger than the sum of its proper divisors (23109250).

42140222 is a wasteful number, since it uses less digits than its factorization.

42140222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679714.

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 42140222 is about 6491.5500460214. The cubic root of 42140222 is about 347.9890724098.

Adding to 42140222 its reverse (22204124), we get a palindrome (64344346).

The spelling of 42140222 in words is "forty-two million, one hundred forty thousand, two hundred twenty-two".