42164836 has 36 divisors (see below), whose sum is σ = 87193344. Its totient is φ = 17476560.

The previous prime is 42164821. The next prime is 42164849. The reversal of 42164836 is 63846124.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26125 + ... + 27691.

Almost surely, 2^42164836 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 42164836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43596672).

42164836 is an abundant number, since it is smaller than the sum of its proper divisors (45028508).

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

42164836 is a wasteful number, since it uses less digits than its factorization.

42164836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1640 (or 1607 counting only the distinct ones).

The product of its digits is 27648, while the sum is 34.

The square root of 42164836 is about 6493.4456184679. The cubic root of 42164836 is about 348.0568124096.

The spelling of 42164836 in words is "forty-two million, one hundred sixty-four thousand, eight hundred thirty-six".