42315500 has 24 divisors (see below), whose sum is σ = 92418144. Its totient is φ = 16926000.

The previous prime is 42315487. The next prime is 42315521. The reversal of 42315500 is 551324.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 41816 + ... + 42815.

It is an arithmetic number, because the mean of its divisors is an integer number (3850756).

Almost surely, 2^42315500 is an apocalyptic number.

It is an amenable number.

42315500 is an abundant number, since it is smaller than the sum of its proper divisors (50102644).

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

42315500 is a wasteful number, since it uses less digits than its factorization.

42315500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84650 (or 84638 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 42315500 is about 6505.0365102742. The cubic root of 42315500 is about 348.4708801565.

Adding to 42315500 its reverse (551324), we get a palindrome (42866824).

The spelling of 42315500 in words is "forty-two million, three hundred fifteen thousand, five hundred".