42111433 has 12 divisors (see below), whose sum is σ = 52755780. Its totient is φ = 33318432.

The previous prime is 42111409. The next prime is 42111473. The reversal of 42111433 is 33411124.

It can be written as a sum of positive squares in 2 ways, for example, as 16426809 + 25684624 = 4053^2 + 5068^2 .

It is not a de Polignac number, because 42111433 - 2⁵ = 42111401 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42111433.

It is not an unprimeable number, because it can be changed into a prime (42111403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32418 + ... + 33691.

It is an arithmetic number, because the mean of its divisors is an integer number (4396315).

Almost surely, 2^42111433 is an apocalyptic number.

It is an amenable number.

42111433 is a deficient number, since it is larger than the sum of its proper divisors (10644347).

42111433 is a wasteful number, since it uses less digits than its factorization.

42111433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66136 (or 66129 counting only the distinct ones).

The product of its digits is 288, while the sum is 19.

The square root of 42111433 is about 6489.3322460789. The cubic root of 42111433 is about 347.9098089477.

Adding to 42111433 its reverse (33411124), we get a palindrome (75522557).

The spelling of 42111433 in words is "forty-two million, one hundred eleven thousand, four hundred thirty-three".