201420250 has 64 divisors (see below), whose sum is σ = 404756352. Its totient is φ = 74784000.

The previous prime is 201420187. The next prime is 201420253. The reversal of 201420250 is 52024102.

It is a super-2 number, since 2×201420250² = 81140234220125000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (201420253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 352465 + ... + 353035.

It is an arithmetic number, because the mean of its divisors is an integer number (6324318).

Almost surely, 2^201420250 is an apocalyptic number.

201420250 is an abundant number, since it is smaller than the sum of its proper divisors (203336102).

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

201420250 is a wasteful number, since it uses less digits than its factorization.

201420250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688 (or 678 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 201420250 is about 14192.2602146381. The cubic root of 201420250 is about 586.1845625365.

Adding to 201420250 its reverse (52024102), we get a palindrome (253444352).

The spelling of 201420250 in words is "two hundred one million, four hundred twenty thousand, two hundred fifty".