42090214 has 4 divisors (see below), whose sum is σ = 63135324. Its totient is φ = 21045106.

The previous prime is 42090199. The next prime is 42090227. The reversal of 42090214 is 41209024.

42090214 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×42090214² = 3543172229131592, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10522552 + ... + 10522555.

It is an arithmetic number, because the mean of its divisors is an integer number (15783831).

Almost surely, 2^42090214 is an apocalyptic number.

42090214 is a deficient number, since it is larger than the sum of its proper divisors (21045110).

42090214 is a wasteful number, since it uses less digits than its factorization.

42090214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21045109.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 42090214 is about 6487.6971260995. The cubic root of 42090214 is about 347.8513644986.

Adding to 42090214 its reverse (41209024), we get a palindrome (83299238).

The spelling of 42090214 in words is "forty-two million, ninety thousand, two hundred fourteen".