142223020 has 24 divisors (see below), whose sum is σ = 316237824. Its totient is φ = 53542656.

The previous prime is 142222957. The next prime is 142223021. The reversal of 142223020 is 20322241.

It is a junction number, because it is equal to n+sod(n) for n = 142222985 and 142223003.

It is not an unprimeable number, because it can be changed into a prime (142223021) 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 7 ways as a sum of consecutive naturals, for example, 208812 + ... + 209491.

It is an arithmetic number, because the mean of its divisors is an integer number (13176576).

Almost surely, 2^142223020 is an apocalyptic number.

142223020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142223020 is an abundant number, since it is smaller than the sum of its proper divisors (174014804).

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

142223020 is a wasteful number, since it uses less digits than its factorization.

142223020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418329 (or 418327 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 142223020 is about 11925.7293278021. The cubic root of 142223020 is about 521.9833281523.

Adding to 142223020 its reverse (20322241), we get a palindrome (162545261).

It can be divided in two parts, 1422 and 23020, that added together give a palindrome (24442).

The spelling of 142223020 in words is "one hundred forty-two million, two hundred twenty-three thousand, twenty".