142422988 has 12 divisors (see below), whose sum is σ = 249417000. Its totient is φ = 71160992.

The previous prime is 142422979. The next prime is 142423013. The reversal of 142422988 is 889224241.

It is a self number, because there is not a number n which added to its sum of digits gives 142422988.

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, 5881 + ... + 17872.

It is an arithmetic number, because the mean of its divisors is an integer number (20784750).

Almost surely, 2^142422988 is an apocalyptic number.

It is an amenable number.

142422988 is a deficient number, since it is larger than the sum of its proper divisors (106994012).

142422988 is a wasteful number, since it uses less digits than its factorization.

142422988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25256 (or 25254 counting only the distinct ones).

The product of its digits is 73728, while the sum is 40.

The square root of 142422988 is about 11934.1102726596. The cubic root of 142422988 is about 522.2278527502.

The spelling of 142422988 in words is "one hundred forty-two million, four hundred twenty-two thousand, nine hundred eighty-eight".