142331040 has 192 divisors, whose sum is σ = 509483520. Its totient is φ = 37094400.

The previous prime is 142331039. The next prime is 142331047. The reversal of 142331040 is 40133241.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142331047) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 202690 + ... + 203390.

It is an arithmetic number, because the mean of its divisors is an integer number (2653560).

Almost surely, 2^142331040 is an apocalyptic number.

142331040 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 142331040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (254741760).

142331040 is an abundant number, since it is smaller than the sum of its proper divisors (367152480).

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

142331040 is a wasteful number, since it uses less digits than its factorization.

142331040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 772 (or 758 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 142331040 is about 11930.2573316756. The cubic root of 142331040 is about 522.1154454663.

Adding to 142331040 its reverse (40133241), we get a palindrome (182464281).

The spelling of 142331040 in words is "one hundred forty-two million, three hundred thirty-one thousand, forty".