142440355 has 8 divisors (see below), whose sum is σ = 175097664. Its totient is φ = 111172800.

The previous prime is 142440349. The next prime is 142440421. The reversal of 142440355 is 553044241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 142440355 - 2⁵ = 142440323 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 347211 + ... + 347620.

It is an arithmetic number, because the mean of its divisors is an integer number (21887208).

Almost surely, 2^142440355 is an apocalyptic number.

142440355 is a deficient number, since it is larger than the sum of its proper divisors (32657309).

142440355 is an equidigital number, since it uses as much as digits as its factorization.

142440355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694877.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 142440355 is about 11934.8378707044. The cubic root of 142440355 is about 522.2490786366.

Adding to 142440355 its reverse (553044241), we get a palindrome (695484596).

The spelling of 142440355 in words is "one hundred forty-two million, four hundred forty thousand, three hundred fifty-five".