201849340 has 48 divisors (see below), whose sum is σ = 528482304. Its totient is φ = 62913600.

The previous prime is 201849317. The next prime is 201849341. The reversal of 201849340 is 43948102.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201849341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63996 + ... + 67075.

It is an arithmetic number, because the mean of its divisors is an integer number (11010048).

Almost surely, 2^201849340 is an apocalyptic number.

201849340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201849340 is an abundant number, since it is smaller than the sum of its proper divisors (326632964).

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

201849340 is a wasteful number, since it uses less digits than its factorization.

201849340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131098 (or 131096 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 201849340 is about 14207.3692146013. The cubic root of 201849340 is about 586.6005212673.

The spelling of 201849340 in words is "two hundred one million, eight hundred forty-nine thousand, three hundred forty".