42316020 has 72 divisors (see below), whose sum is σ = 133127904. Its totient is φ = 11282976.

The previous prime is 42316007. The next prime is 42316037. The reversal of 42316020 is 2061324.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 42315984 and 42316002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 507 + ... + 9213.

Almost surely, 2^42316020 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 42316020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66563952).

42316020 is an abundant number, since it is smaller than the sum of its proper divisors (90811884).

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

42316020 is a wasteful number, since it uses less digits than its factorization.

42316020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8731 (or 8717 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 42316020 is about 6505.0764791815. The cubic root of 42316020 is about 348.4723075619.

Adding to 42316020 its reverse (2061324), we get a palindrome (44377344).

The spelling of 42316020 in words is "forty-two million, three hundred sixteen thousand, twenty".