42018324 has 24 divisors (see below), whose sum is σ = 99146880. Its totient is φ = 13848384.

The previous prime is 42018257. The next prime is 42018371. The reversal of 42018324 is 42381024.

It is a junction number, because it is equal to n+sod(n) for n = 42018294 and 42018303.

It is a congruent number.

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, 18604 + ... + 20739.

It is an arithmetic number, because the mean of its divisors is an integer number (4131120).

Almost surely, 2^42018324 is an apocalyptic number.

It is an amenable number.

42018324 is an abundant number, since it is smaller than the sum of its proper divisors (57128556).

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

42018324 is a wasteful number, since it uses less digits than its factorization.

42018324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39439 (or 39437 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 42018324 is about 6482.1542715366. The cubic root of 42018324 is about 347.6532084977.

Adding to 42018324 its reverse (42381024), we get a palindrome (84399348).

The spelling of 42018324 in words is "forty-two million, eighteen thousand, three hundred twenty-four".