201428738 has 8 divisors (see below), whose sum is σ = 345306432. Its totient is φ = 86326596.

The previous prime is 201428737. The next prime is 201428761. The reversal of 201428738 is 837824102.

201428738 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 201428698 and 201428707.

It is not an unprimeable number, because it can be changed into a prime (201428737) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7193870 + ... + 7193897.

It is an arithmetic number, because the mean of its divisors is an integer number (43163304).

Almost surely, 2^201428738 is an apocalyptic number.

201428738 is a deficient number, since it is larger than the sum of its proper divisors (143877694).

201428738 is a wasteful number, since it uses less digits than its factorization.

201428738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14387776.

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 201428738 is about 14192.5592477185. The cubic root of 201428738 is about 586.1927965062.

The spelling of 201428738 in words is "two hundred one million, four hundred twenty-eight thousand, seven hundred thirty-eight".