142618284 has 18 divisors (see below), whose sum is σ = 360507420. Its totient is φ = 47539416.

The previous prime is 142618271. The next prime is 142618291. The reversal of 142618284 is 482816241.

142618284 is a `hidden beast` number, since 14 + 2 + 618 + 28 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×142618284² = 40679949862209312, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 3961619 = 142618284 / (1 + 4 + 2 + 6 + 1 + 8 + 2 + 8 + 4).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1980774 + ... + 1980845.

It is an arithmetic number, because the mean of its divisors is an integer number (20028190).

Almost surely, 2^142618284 is an apocalyptic number.

It is an amenable number.

142618284 is an abundant number, since it is smaller than the sum of its proper divisors (217889136).

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

142618284 is a wasteful number, since it uses less digits than its factorization.

142618284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3961629 (or 3961624 counting only the distinct ones).

The product of its digits is 24576, while the sum is 36.

The square root of 142618284 is about 11942.2897301983. The cubic root of 142618284 is about 522.4664435155.

The spelling of 142618284 in words is "one hundred forty-two million, six hundred eighteen thousand, two hundred eighty-four".