142324644 has 192 divisors, whose sum is σ = 446164992. Its totient is φ = 34214400.

The previous prime is 142324639. The next prime is 142324661. The reversal of 142324644 is 446423241.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 786234 + ... + 786414.

It is an arithmetic number, because the mean of its divisors is an integer number (2323776).

Almost surely, 2^142324644 is an apocalyptic number.

142324644 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142324644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (223082496).

142324644 is an abundant number, since it is smaller than the sum of its proper divisors (303840348).

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

142324644 is a wasteful number, since it uses less digits than its factorization.

142324644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266 (or 264 counting only the distinct ones).

The product of its digits is 18432, while the sum is 30.

The square root of 142324644 is about 11929.9892707412. The cubic root of 142324644 is about 522.1076244963.

Adding to 142324644 its reverse (446423241), we get a palindrome (588747885).

The spelling of 142324644 in words is "one hundred forty-two million, three hundred twenty-four thousand, six hundred forty-four".