142036446 has 16 divisors (see below), whose sum is σ = 284194944. Its totient is φ = 47325144.

The previous prime is 142036441. The next prime is 142036463. The reversal of 142036446 is 644630241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142036441) by changing a digit.

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, 18361 + ... + 24923.

It is an arithmetic number, because the mean of its divisors is an integer number (17762184).

Almost surely, 2^142036446 is an apocalyptic number.

142036446 is an abundant number, since it is smaller than the sum of its proper divisors (142158498).

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

142036446 is a wasteful number, since it uses less digits than its factorization.

142036446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10175.

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 142036446 is about 11917.9044298903. The cubic root of 142036446 is about 521.7549752114.

Adding to 142036446 its reverse (644630241), we get a palindrome (786666687).

The spelling of 142036446 in words is "one hundred forty-two million, thirty-six thousand, four hundred forty-six".