42212270 has 8 divisors (see below), whose sum is σ = 75982104. Its totient is φ = 16884904.

The previous prime is 42212267. The next prime is 42212279. The reversal of 42212270 is 7221224.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42212279) 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, 2110604 + ... + 2110623.

It is an arithmetic number, because the mean of its divisors is an integer number (9497763).

Almost surely, 2^42212270 is an apocalyptic number.

42212270 is a deficient number, since it is larger than the sum of its proper divisors (33769834).

42212270 is a wasteful number, since it uses less digits than its factorization.

42212270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4221234.

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 42212270 is about 6497.0970440651. The cubic root of 42212270 is about 348.1872808387.

Adding to 42212270 its reverse (7221224), we get a palindrome (49433494).

The spelling of 42212270 in words is "forty-two million, two hundred twelve thousand, two hundred seventy".