42857936 has 40 divisors (see below), whose sum is σ = 91520928. Its totient is φ = 19280000.

The previous prime is 42857923. The next prime is 42857953. The reversal of 42857936 is 63975824.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16571 + ... + 18981.

Almost surely, 2^42857936 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42857936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45760464).

42857936 is an abundant number, since it is smaller than the sum of its proper divisors (48662992).

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

42857936 is a wasteful number, since it uses less digits than its factorization.

42857936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2531 (or 2525 counting only the distinct ones).

The product of its digits is 362880, while the sum is 44.

The square root of 42857936 is about 6546.5972840858. The cubic root of 42857936 is about 349.9535611856.

It can be divided in two parts, 4285 and 7936, that added together give a palindrome (12221).

The spelling of 42857936 in words is "forty-two million, eight hundred fifty-seven thousand, nine hundred thirty-six".