42324320 has 24 divisors (see below), whose sum is σ = 99991584. Its totient is φ = 16929664.

The previous prime is 42324319. The next prime is 42324323. The reversal of 42324320 is 2342324.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 42324292 and 42324301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42324323) 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, 132104 + ... + 132423.

It is an arithmetic number, because the mean of its divisors is an integer number (4166316).

Almost surely, 2^42324320 is an apocalyptic number.

42324320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42324320 is an abundant number, since it is smaller than the sum of its proper divisors (57667264).

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

42324320 is a wasteful number, since it uses less digits than its factorization.

42324320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264542 (or 264534 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 42324320 is about 6505.7144111927. The cubic root of 42324320 is about 348.4950895648.

Adding to 42324320 its reverse (2342324), we get a palindrome (44666644).

The spelling of 42324320 in words is "forty-two million, three hundred twenty-four thousand, three hundred twenty".