142022280 has 128 divisors (see below), whose sum is σ = 453081600. Its totient is φ = 35546112.

The previous prime is 142022273. The next prime is 142022299. The reversal of 142022280 is 82220241.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 128209 + ... + 129311.

It is an arithmetic number, because the mean of its divisors is an integer number (3539700).

Almost surely, 2^142022280 is an apocalyptic number.

142022280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142022280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (226540800).

142022280 is an abundant number, since it is smaller than the sum of its proper divisors (311059320).

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

142022280 is a wasteful number, since it uses less digits than its factorization.

142022280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1183 (or 1179 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 142022280 is about 11917.3100991793. The cubic root of 142022280 is about 521.7376288966.

The spelling of 142022280 in words is "one hundred forty-two million, twenty-two thousand, two hundred eighty".