142324220 has 24 divisors (see below), whose sum is σ = 301966224. Its totient is φ = 56342016.

The previous prime is 142324211. The next prime is 142324241. The reversal of 142324220 is 22423241.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 142324192 and 142324201.

It is a congruent number.

It is an unprimeable number.

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, 34742 + ... + 38621.

It is an arithmetic number, because the mean of its divisors is an integer number (12581926).

Almost surely, 2^142324220 is an apocalyptic number.

142324220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142324220 is an abundant number, since it is smaller than the sum of its proper divisors (159642004).

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

142324220 is a wasteful number, since it uses less digits than its factorization.

142324220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73469 (or 73467 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 142324220 is about 11929.9715003851. The cubic root of 142324220 is about 522.1071060247.

Adding to 142324220 its reverse (22423241), we get a palindrome (164747461).

The spelling of 142324220 in words is "one hundred forty-two million, three hundred twenty-four thousand, two hundred twenty".