201227400 has 144 divisors (see below), whose sum is σ = 737296560. Its totient is φ = 48777600.

The previous prime is 201227399. The next prime is 201227443. The reversal of 201227400 is 4722102.

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

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 14719 + ... + 24881.

It is an arithmetic number, because the mean of its divisors is an integer number (5120115).

Almost surely, 2^201227400 is an apocalyptic number.

201227400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201227400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (368648280).

201227400 is an abundant number, since it is smaller than the sum of its proper divisors (536069160).

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

201227400 is a wasteful number, since it uses less digits than its factorization.

201227400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10196 (or 10184 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 201227400 is about 14185.4643914114. The cubic root of 201227400 is about 585.9974218185.

Adding to 201227400 its reverse (4722102), we get a palindrome (205949502).

The spelling of 201227400 in words is "two hundred one million, two hundred twenty-seven thousand, four hundred".