2018142 has 64 divisors (see below), whose sum is σ = 5414400. Its totient is φ = 544320.

The previous prime is 2018117. The next prime is 2018153. The reversal of 2018142 is 2418102.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent 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, 7042 + ... + 7322.

It is an arithmetic number, because the mean of its divisors is an integer number (84600).

2^2018142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2018142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2707200).

2018142 is an abundant number, since it is smaller than the sum of its proper divisors (3396258).

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

2018142 is a wasteful number, since it uses less digits than its factorization.

2018142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318 (or 312 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 2018142 is about 1420.6132478616. The cubic root of 2018142 is about 126.3719169972.

The spelling of 2018142 in words is "two million, eighteen thousand, one hundred forty-two".