201867020 has 24 divisors (see below), whose sum is σ = 446233200. Its totient is φ = 76496832.

The previous prime is 201867011. The next prime is 201867031. The reversal of 201867020 is 20768102.

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 in 7 ways as a sum of consecutive naturals, for example, 265235 + ... + 265994.

It is an arithmetic number, because the mean of its divisors is an integer number (18593050).

Almost surely, 2^201867020 is an apocalyptic number.

201867020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201867020 is an abundant number, since it is smaller than the sum of its proper divisors (244366180).

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

201867020 is a wasteful number, since it uses less digits than its factorization.

201867020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531257 (or 531255 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 201867020 is about 14207.9914132857. The cubic root of 201867020 is about 586.6176475629.

The spelling of 201867020 in words is "two hundred one million, eight hundred sixty-seven thousand, twenty".