201235620 has 24 divisors (see below), whose sum is σ = 563459904. Its totient is φ = 53662816.

The previous prime is 201235603. The next prime is 201235627. The reversal of 201235620 is 26532102.

It is not an unprimeable number, because it can be changed into a prime (201235627) 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 7 ways as a sum of consecutive naturals, for example, 1676904 + ... + 1677023.

It is an arithmetic number, because the mean of its divisors is an integer number (23477496).

Almost surely, 2^201235620 is an apocalyptic number.

201235620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201235620 is an abundant number, since it is smaller than the sum of its proper divisors (362224284).

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

201235620 is a wasteful number, since it uses less digits than its factorization.

201235620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3353939 (or 3353937 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 201235620 is about 14185.7541216532. The cubic root of 201235620 is about 586.0054009062.

Adding to 201235620 its reverse (26532102), we get a palindrome (227767722).

The spelling of 201235620 in words is "two hundred one million, two hundred thirty-five thousand, six hundred twenty".