2142018 has 16 divisors (see below), whose sum is σ = 4760160. Its totient is φ = 713988.

The previous prime is 2142001. The next prime is 2142029. The reversal of 2142018 is 8102412.

It is a super-2 number, since 2×2142018² = 9176482224648, which contains 22 as substring.

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

It is a Curzon number.

It is a plaindrome in base 11.

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, 19780 + ... + 19887.

It is an arithmetic number, because the mean of its divisors is an integer number (297510).

2^2142018 is an apocalyptic number.

2142018 is an abundant number, since it is smaller than the sum of its proper divisors (2618142).

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

2142018 is a wasteful number, since it uses less digits than its factorization.

2142018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39678 (or 39672 counting only the distinct ones).

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

The square root of 2142018 is about 1463.5634595056. The cubic root of 2142018 is about 128.9063679668.

The spelling of 2142018 in words is "two million, one hundred forty-two thousand, eighteen".