42624115 has 4 divisors (see below), whose sum is σ = 51148944. Its totient is φ = 34099288.

The previous prime is 42624107. The next prime is 42624119. The reversal of 42624115 is 51142624.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42624115 - 2³ = 42624107 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42624115.

It is not an unprimeable number, because it can be changed into a prime (42624119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4262407 + ... + 4262416.

It is an arithmetic number, because the mean of its divisors is an integer number (12787236).

Almost surely, 2^42624115 is an apocalyptic number.

42624115 is a deficient number, since it is larger than the sum of its proper divisors (8524829).

42624115 is an equidigital number, since it uses as much as digits as its factorization.

42624115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8524828.

The product of its digits is 1920, while the sum is 25.

The square root of 42624115 is about 6528.7146514456. The cubic root of 42624115 is about 349.3159838040.

Adding to 42624115 its reverse (51142624), we get a palindrome (93766739).

The spelling of 42624115 in words is "forty-two million, six hundred twenty-four thousand, one hundred fifteen".