201255428 has 72 divisors (see below), whose sum is σ = 410235840. Its totient is φ = 86152000.

The previous prime is 201255427. The next prime is 201255449. The reversal of 201255428 is 824552102.

201255428 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 201255428.

It is not an unprimeable number, because it can be changed into a prime (201255421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1124243 + ... + 1124421.

It is an arithmetic number, because the mean of its divisors is an integer number (5697720).

Almost surely, 2^201255428 is an apocalyptic number.

It is an amenable number.

201255428 is an abundant number, since it is smaller than the sum of its proper divisors (208980412).

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

201255428 is a wasteful number, since it uses less digits than its factorization.

201255428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329 (or 316 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 29.

The square root of 201255428 is about 14186.4522696832. The cubic root of 201255428 is about 586.0246274794.

The spelling of 201255428 in words is "two hundred one million, two hundred fifty-five thousand, four hundred twenty-eight".