42443164 has 6 divisors (see below), whose sum is σ = 74275544. Its totient is φ = 21221580.

The previous prime is 42443099. The next prime is 42443179. The reversal of 42443164 is 46134424.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5305392 + ... + 5305399.

Almost surely, 2^42443164 is an apocalyptic number.

It is an amenable number.

42443164 is a deficient number, since it is larger than the sum of its proper divisors (31832380).

42443164 is a wasteful number, since it uses less digits than its factorization.

42443164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10610795 (or 10610793 counting only the distinct ones).

The product of its digits is 9216, while the sum is 28.

The square root of 42443164 is about 6514.8418246340. The cubic root of 42443164 is about 348.8209687581.

Adding to 42443164 its reverse (46134424), we get a palindrome (88577588).

The spelling of 42443164 in words is "forty-two million, four hundred forty-three thousand, one hundred sixty-four".