42433686 has 16 divisors (see below), whose sum is σ = 94297200. Its totient is φ = 14144544.

The previous prime is 42433681. The next prime is 42433691. The reversal of 42433686 is 68633424.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (42433681) and next prime (42433691).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 42433686.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42433681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 392851 + ... + 392958.

It is an arithmetic number, because the mean of its divisors is an integer number (5893575).

Almost surely, 2^42433686 is an apocalyptic number.

42433686 is an abundant number, since it is smaller than the sum of its proper divisors (51863514).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42433686 is a wasteful number, since it uses less digits than its factorization.

42433686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785820 (or 785814 counting only the distinct ones).

The product of its digits is 82944, while the sum is 36.

The square root of 42433686 is about 6514.1143680473. The cubic root of 42433686 is about 348.7950017082.

The spelling of 42433686 in words is "forty-two million, four hundred thirty-three thousand, six hundred eighty-six".