142207340 has 24 divisors (see below), whose sum is σ = 325784592. Its totient is φ = 51711680.

The previous prime is 142207339. The next prime is 142207349. The reversal of 142207340 is 43702241.

It is not an unprimeable number, because it can be changed into a prime (142207349) 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, 322979 + ... + 323418.

It is an arithmetic number, because the mean of its divisors is an integer number (13574358).

Almost surely, 2^142207340 is an apocalyptic number.

142207340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142207340 is an abundant number, since it is smaller than the sum of its proper divisors (183577252).

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

142207340 is a wasteful number, since it uses less digits than its factorization.

142207340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646417 (or 646415 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 142207340 is about 11925.0719075400. The cubic root of 142207340 is about 521.9641446676.

Adding to 142207340 its reverse (43702241), we get a palindrome (185909581).

The spelling of 142207340 in words is "one hundred forty-two million, two hundred seven thousand, three hundred forty".