201670049 has 8 divisors (see below), whose sum is σ = 240501120. Its totient is φ = 165344256.

The previous prime is 201670039. The next prime is 201670181. The reversal of 201670049 is 940076102.

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

It is a de Polignac number, because none of the positive numbers 2^k-201670049 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (201670039) 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, 626144 + ... + 626465.

It is an arithmetic number, because the mean of its divisors is an integer number (30062640).

Almost surely, 2^201670049 is an apocalyptic number.

It is an amenable number.

201670049 is a deficient number, since it is larger than the sum of its proper divisors (38831071).

201670049 is a wasteful number, since it uses less digits than its factorization.

201670049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1252639.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 201670049 is about 14201.0580239643. The cubic root of 201670049 is about 586.4267888044.

The spelling of 201670049 in words is "two hundred one million, six hundred seventy thousand, forty-nine".