42360644 has 12 divisors (see below), whose sum is σ = 74198124. Its totient is φ = 21161184.

The previous prime is 42360629. The next prime is 42360673. The reversal of 42360644 is 44606324.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 18232900 + 24127744 = 4270^2 + 4912^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 962 + ... + 9254.

It is an arithmetic number, because the mean of its divisors is an integer number (6183177).

Almost surely, 2^42360644 is an apocalyptic number.

It is an amenable number.

42360644 is a deficient number, since it is larger than the sum of its proper divisors (31837480).

42360644 is a wasteful number, since it uses less digits than its factorization.

42360644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9574 (or 9572 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 29.

The square root of 42360644 is about 6508.5055120204. The cubic root of 42360644 is about 348.5947573680.

Adding to 42360644 its reverse (44606324), we get a palindrome (86966968).

The spelling of 42360644 in words is "forty-two million, three hundred sixty thousand, six hundred forty-four".