142223310 has 64 divisors (see below), whose sum is σ = 381312000. Its totient is φ = 37721376.

The previous prime is 142223293. The next prime is 142223311. The reversal of 142223310 is 13322241.

142223310 is a `hidden beast` number, since 1 + 422 + 233 + 10 = 666.

It is a super-2 number, since 2×142223310² = 40454939814712200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142223311) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52407 + ... + 55053.

It is an arithmetic number, because the mean of its divisors is an integer number (5958000).

Almost surely, 2^142223310 is an apocalyptic number.

142223310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 142223310, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190656000).

142223310 is an abundant number, since it is smaller than the sum of its proper divisors (239088690).

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

142223310 is a wasteful number, since it uses less digits than its factorization.

142223310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2862 (or 2856 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 142223310 is about 11925.7414863815. The cubic root of 142223310 is about 521.9836829356.

Adding to 142223310 its reverse (13322241), we get a palindrome (155545551).

The spelling of 142223310 in words is "one hundred forty-two million, two hundred twenty-three thousand, three hundred ten".