142407222 has 16 divisors (see below), whose sum is σ = 284955840. Its totient is φ = 47445512.

The previous prime is 142407203. The next prime is 142407257. The reversal of 142407222 is 222704241.

It is a junction number, because it is equal to n+sod(n) for n = 142407192 and 142407201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10873 + ... + 20075.

It is an arithmetic number, because the mean of its divisors is an integer number (17809740).

Almost surely, 2^142407222 is an apocalyptic number.

142407222 is an abundant number, since it is smaller than the sum of its proper divisors (142548618).

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

142407222 is a wasteful number, since it uses less digits than its factorization.

142407222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11787.

The product of its (nonzero) digits is 1792, while the sum is 24.

The square root of 142407222 is about 11933.4497107919. The cubic root of 142407222 is about 522.2085821060.

The spelling of 142407222 in words is "one hundred forty-two million, four hundred seven thousand, two hundred twenty-two".