42239011 has 4 divisors (see below), whose sum is σ = 42869512. Its totient is φ = 41608512.

The previous prime is 42239003. The next prime is 42239059. The reversal of 42239011 is 11093224.

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 42239011 - 2³ = 42239003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42239111) 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, 315150 + ... + 315283.

It is an arithmetic number, because the mean of its divisors is an integer number (10717378).

Almost surely, 2^42239011 is an apocalyptic number.

42239011 is a deficient number, since it is larger than the sum of its proper divisors (630501).

42239011 is an equidigital number, since it uses as much as digits as its factorization.

42239011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630500.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 42239011 is about 6499.1546373355. The cubic root of 42239011 is about 348.2607895654.

The spelling of 42239011 in words is "forty-two million, two hundred thirty-nine thousand, eleven".