42644152 has 32 divisors (see below), whose sum is σ = 83102400. Its totient is φ = 20490624.

The previous prime is 42644137. The next prime is 42644153. The reversal of 42644152 is 25144624.

It is a self number, because there is not a number n which added to its sum of digits gives 42644152.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42644153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91873 + ... + 92335.

It is an arithmetic number, because the mean of its divisors is an integer number (2596950).

Almost surely, 2^42644152 is an apocalyptic number.

It is an amenable number.

42644152 is a deficient number, since it is larger than the sum of its proper divisors (40458248).

42644152 is a wasteful number, since it uses less digits than its factorization.

42644152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 895 (or 891 counting only the distinct ones).

The product of its digits is 7680, while the sum is 28.

The square root of 42644152 is about 6530.2489998468. The cubic root of 42644152 is about 349.3707114146.

Adding to 42644152 its reverse (25144624), we get a palindrome (67788776).

The spelling of 42644152 in words is "forty-two million, six hundred forty-four thousand, one hundred fifty-two".