42170712 has 32 divisors (see below), whose sum is σ = 105721200. Its totient is φ = 14017664.

The previous prime is 42170701. The next prime is 42170729. The reversal of 42170712 is 21707124.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 7078 + ... + 11594.

Almost surely, 2^42170712 is an apocalyptic number.

It is an amenable number.

42170712 is an abundant number, since it is smaller than the sum of its proper divisors (63550488).

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

42170712 is a wasteful number, since it uses less digits than its factorization.

42170712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4915 (or 4911 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 24.

The square root of 42170712 is about 6493.8980589473. The cubic root of 42170712 is about 348.0729798058.

Adding to 42170712 its reverse (21707124), we get a palindrome (63877836).

The spelling of 42170712 in words is "forty-two million, one hundred seventy thousand, seven hundred twelve".