142244280 has 192 divisors, whose sum is σ = 485503200. Its totient is φ = 36080640.

The previous prime is 142244261. The next prime is 142244299. The reversal of 142244280 is 82442241.

142244280 is a `hidden beast` number, since 14 + 224 + 428 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (142244261) and next prime (142244299).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 785790 + ... + 785970.

Almost surely, 2^142244280 is an apocalyptic number.

142244280 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 142244280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (242751600).

142244280 is an abundant number, since it is smaller than the sum of its proper divisors (343258920).

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

142244280 is a wasteful number, since it uses less digits than its factorization.

142244280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294 (or 287 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 27.

The square root of 142244280 is about 11926.6206445917. The cubic root of 142244280 is about 522.0093361610.

The spelling of 142244280 in words is "one hundred forty-two million, two hundred forty-four thousand, two hundred eighty".