142313440 has 48 divisors (see below), whose sum is σ = 347820480. Its totient is φ = 54960640.

The previous prime is 142313429. The next prime is 142313441. The reversal of 142313440 is 44313241.

142313440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142313441) 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, 10696 + ... + 19975.

It is an arithmetic number, because the mean of its divisors is an integer number (7246260).

Almost surely, 2^142313440 is an apocalyptic number.

142313440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142313440 is an abundant number, since it is smaller than the sum of its proper divisors (205507040).

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

142313440 is a wasteful number, since it uses less digits than its factorization.

142313440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30715 (or 30707 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 142313440 is about 11929.5196885709. The cubic root of 142313440 is about 522.0939237832.

Adding to 142313440 its reverse (44313241), we get a palindrome (186626681).

It can be divided in two parts, 14231 and 3440, that added together give a palindrome (17671).

The spelling of 142313440 in words is "one hundred forty-two million, three hundred thirteen thousand, four hundred forty".