142667224 has 24 divisors (see below), whose sum is σ = 311175540. Its totient is φ = 61142928.

The previous prime is 142667221. The next prime is 142667233. The reversal of 142667224 is 422766241.

142667224 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 142667224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142667221) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 181582 + ... + 182365.

Almost surely, 2^142667224 is an apocalyptic number.

142667224 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

142667224 is an abundant number, since it is smaller than the sum of its proper divisors (168508316).

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

142667224 is a wasteful number, since it uses less digits than its factorization.

142667224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363967 (or 363956 counting only the distinct ones).

The product of its digits is 32256, while the sum is 34.

The square root of 142667224 is about 11944.3385752414. The cubic root of 142667224 is about 522.5261987886.

The spelling of 142667224 in words is "one hundred forty-two million, six hundred sixty-seven thousand, two hundred twenty-four".