201124040 has 32 divisors (see below), whose sum is σ = 487340280. Its totient is φ = 74260992.

The previous prime is 201124039. The next prime is 201124057. The reversal of 201124040 is 40421102.

It can be written as a sum of positive squares in 4 ways, for example, as 162460516 + 38663524 = 12746^2 + 6218^2 .

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, 192869 + ... + 193908.

Almost surely, 2^201124040 is an apocalyptic number.

201124040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201124040 is an abundant number, since it is smaller than the sum of its proper divisors (286216240).

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

201124040 is a wasteful number, since it uses less digits than its factorization.

201124040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386801 (or 386797 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 201124040 is about 14181.8207575755. The cubic root of 201124040 is about 585.8970725506.

Adding to 201124040 its reverse (40421102), we get a palindrome (241545142).

The spelling of 201124040 in words is "two hundred one million, one hundred twenty-four thousand, forty".