142404256 has 24 divisors (see below), whose sum is σ = 284958324. Its totient is φ = 70033920.

The previous prime is 142404253. The next prime is 142404263. The reversal of 142404256 is 652404241.

It can be written as a sum of positive squares in 2 ways, for example, as 128595600 + 13808656 = 11340^2 + 3716^2 .

It is not an unprimeable number, because it can be changed into a prime (142404253) 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 3 ways as a sum of consecutive naturals, for example, 34525 + ... + 38428.

Almost surely, 2^142404256 is an apocalyptic number.

142404256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

142404256 is an abundant number, since it is smaller than the sum of its proper divisors (142554068).

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

142404256 is an equidigital number, since it uses as much as digits as its factorization.

142404256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73024 (or 73016 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 142404256 is about 11933.3254376138. The cubic root of 142404256 is about 522.2049566312.

Adding to 142404256 its reverse (652404241), we get a palindrome (794808497).

It can be divided in two parts, 14240 and 4256, that added together give a square (18496 = 136²).

The spelling of 142404256 in words is "one hundred forty-two million, four hundred four thousand, two hundred fifty-six".