42321244 has 24 divisors (see below), whose sum is σ = 86446080. Its totient is φ = 17751216.

The previous prime is 42321241. The next prime is 42321247. The reversal of 42321244 is 44212324.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (42321241) and next prime (42321247).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42321241) 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, 14764 + ... + 17395.

It is an arithmetic number, because the mean of its divisors is an integer number (3601920).

Almost surely, 2^42321244 is an apocalyptic number.

It is an amenable number.

42321244 is an abundant number, since it is smaller than the sum of its proper divisors (44124836).

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

42321244 is a wasteful number, since it uses less digits than its factorization.

42321244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32217 (or 32215 counting only the distinct ones).

The product of its digits is 1536, while the sum is 22.

The square root of 42321244 is about 6505.4779993479. The cubic root of 42321244 is about 348.4866468470.

Adding to 42321244 its reverse (44212324), we get a palindrome (86533568).

It can be divided in two parts, 4232 and 1244, that added together give a square (5476 = 74²).

The spelling of 42321244 in words is "forty-two million, three hundred twenty-one thousand, two hundred forty-four".