201657328 has 10 divisors (see below), whose sum is σ = 390711104. Its totient is φ = 100828656.

The previous prime is 201657319. The next prime is 201657361. The reversal of 201657328 is 823756102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 201657293 and 201657302.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6301776 + ... + 6301807.

Almost surely, 2^201657328 is an apocalyptic number.

It is an amenable number.

201657328 is a deficient number, since it is larger than the sum of its proper divisors (189053776).

201657328 is a wasteful number, since it uses less digits than its factorization.

201657328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12603591 (or 12603585 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 201657328 is about 14200.6101277375. The cubic root of 201657328 is about 586.4144582806.

The spelling of 201657328 in words is "two hundred one million, six hundred fifty-seven thousand, three hundred twenty-eight".