42493211 has 4 divisors (see below), whose sum is σ = 42519624. Its totient is φ = 42466800.

The previous prime is 42493181. The next prime is 42493229. The reversal of 42493211 is 11239424.

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

It is a cyclic number.

It is not a de Polignac number, because 42493211 - 2⁶ = 42493147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42493411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10625 + ... + 14066.

It is an arithmetic number, because the mean of its divisors is an integer number (10629906).

Almost surely, 2^42493211 is an apocalyptic number.

42493211 is a deficient number, since it is larger than the sum of its proper divisors (26413).

42493211 is a wasteful number, since it uses less digits than its factorization.

42493211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26412.

The product of its digits is 1728, while the sum is 26.

The square root of 42493211 is about 6518.6816918760. The cubic root of 42493211 is about 348.9580193782.

The spelling of 42493211 in words is "forty-two million, four hundred ninety-three thousand, two hundred eleven".