201340942 has 16 divisors (see below), whose sum is σ = 343792512. Its totient is φ = 87539320.

The previous prime is 201340927. The next prime is 201340943. The reversal of 201340942 is 249043102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201340943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198448 + ... + 199459.

It is an arithmetic number, because the mean of its divisors is an integer number (21487032).

Almost surely, 2^201340942 is an apocalyptic number.

201340942 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

201340942 is a deficient number, since it is larger than the sum of its proper divisors (142451570).

201340942 is a wasteful number, since it uses less digits than its factorization.

201340942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397943.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 201340942 is about 14189.4658814206. The cubic root of 201340942 is about 586.1076168997.

It can be divided in two parts, 201 and 340942, that added together give a palindrome (341143).

The spelling of 201340942 in words is "two hundred one million, three hundred forty thousand, nine hundred forty-two".