42919211 has 4 divisors (see below), whose sum is σ = 43074432. Its totient is φ = 42763992.

The previous prime is 42919193. The next prime is 42919231. The reversal of 42919211 is 11291924.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42919211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42919231) 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, 77195 + ... + 77748.

It is an arithmetic number, because the mean of its divisors is an integer number (10768608).

Almost surely, 2^42919211 is an apocalyptic number.

42919211 is a deficient number, since it is larger than the sum of its proper divisors (155221).

42919211 is a wasteful number, since it uses less digits than its factorization.

42919211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155220.

The product of its digits is 1296, while the sum is 29.

The square root of 42919211 is about 6551.2755246593. The cubic root of 42919211 is about 350.1202607143.

The spelling of 42919211 in words is "forty-two million, nine hundred nineteen thousand, two hundred eleven".