201942 has 24 divisors (see below), whose sum is σ = 471744. Its totient is φ = 62064.

The previous prime is 201937. The next prime is 201947. The reversal of 201942 is 249102.

201942 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (201937) and next prime (201947).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201947) by changing a digit.

201942 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 198 + ... + 665.

It is an arithmetic number, because the mean of its divisors is an integer number (19656).

2²⁰¹⁹⁴² is an apocalyptic number.

201942 is an abundant number, since it is smaller than the sum of its proper divisors (269802).

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

201942 is a wasteful number, since it uses less digits than its factorization.

201942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 884 (or 881 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 201942 is about 449.3795722994. The cubic root of 201942 is about 58.6690268219.

The spelling of 201942 in words is "two hundred one thousand, nine hundred forty-two".