42071832 has 64 divisors (see below), whose sum is σ = 127497600. Its totient is φ = 12748320.

The previous prime is 42071819. The next prime is 42071839. The reversal of 42071832 is 23817024.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 42071796 and 42071805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42071839) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6478 + ... + 11229.

It is an arithmetic number, because the mean of its divisors is an integer number (1992150).

Almost surely, 2^42071832 is an apocalyptic number.

It is an amenable number.

42071832 is an abundant number, since it is smaller than the sum of its proper divisors (85425768).

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

42071832 is a wasteful number, since it uses less digits than its factorization.

42071832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17733 (or 17723 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 42071832 is about 6486.2802899659. The cubic root of 42071832 is about 347.8007182458.

Adding to 42071832 its reverse (23817024), we get a palindrome (65888856).

The spelling of 42071832 in words is "forty-two million, seventy-one thousand, eight hundred thirty-two".