201998630 has 16 divisors (see below), whose sum is σ = 376135920. Its totient is φ = 78013152.

The previous prime is 201998623. The next prime is 201998639. The reversal of 201998630 is 36899102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201998639) 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, 347984 + ... + 348563.

It is an arithmetic number, because the mean of its divisors is an integer number (23508495).

Almost surely, 2^201998630 is an apocalyptic number.

201998630 is a deficient number, since it is larger than the sum of its proper divisors (174137290).

201998630 is a wasteful number, since it uses less digits than its factorization.

201998630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696583.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 201998630 is about 14212.6222070384. The cubic root of 201998630 is about 586.7451043683.

The spelling of 201998630 in words is "two hundred one million, nine hundred ninety-eight thousand, six hundred thirty".