142233140 has 48 divisors (see below), whose sum is σ = 343862400. Its totient is φ = 48408192.

The previous prime is 142233109. The next prime is 142233163. The reversal of 142233140 is 41332241.

It is a super-2 number, since 2×142233140² = 40460532228519200, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15806 + ... + 23114.

It is an arithmetic number, because the mean of its divisors is an integer number (7163800).

Almost surely, 2^142233140 is an apocalyptic number.

142233140 is a gapful number since it is divisible by the number (10) 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 142233140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171931200).

142233140 is an abundant number, since it is smaller than the sum of its proper divisors (201629260).

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

142233140 is a wasteful number, since it uses less digits than its factorization.

142233140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7464 (or 7462 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 142233140 is about 11926.1536129634. The cubic root of 142233140 is about 521.9957085813.

Adding to 142233140 its reverse (41332241), we get a palindrome (183565381).

The spelling of 142233140 in words is "one hundred forty-two million, two hundred thirty-three thousand, one hundred forty".