142400422 has 8 divisors (see below), whose sum is σ = 220491072. Its totient is φ = 68903400.

The previous prime is 142400417. The next prime is 142400471. The reversal of 142400422 is 224004241.

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

It is a self number, because there is not a number n which added to its sum of digits gives 142400422.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1148329 + ... + 1148452.

It is an arithmetic number, because the mean of its divisors is an integer number (27561384).

Almost surely, 2^142400422 is an apocalyptic number.

142400422 is a deficient number, since it is larger than the sum of its proper divisors (78090650).

142400422 is a wasteful number, since it uses less digits than its factorization.

142400422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2296814.

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 142400422 is about 11933.1647939681. The cubic root of 142400422 is about 522.2002700864.

Adding to 142400422 its reverse (224004241), we get a palindrome (366404663).

The spelling of 142400422 in words is "one hundred forty-two million, four hundred thousand, four hundred twenty-two".