201428004 has 24 divisors (see below), whose sum is σ = 475282080. Its totient is φ = 66387904.

The previous prime is 201427981. The next prime is 201428009. The reversal of 201428004 is 400824102.

It is not an unprimeable number, because it can be changed into a prime (201428009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93234 + ... + 95369.

It is an arithmetic number, because the mean of its divisors is an integer number (19803420).

Almost surely, 2^201428004 is an apocalyptic number.

It is an amenable number.

201428004 is an abundant number, since it is smaller than the sum of its proper divisors (273854076).

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

201428004 is a wasteful number, since it uses less digits than its factorization.

201428004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188699 (or 188697 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 201428004 is about 14192.5333890747. The cubic root of 201428004 is about 586.1920844826.

The spelling of 201428004 in words is "two hundred one million, four hundred twenty-eight thousand, four".