201453220 has 24 divisors (see below), whose sum is σ = 424343808. Its totient is φ = 80335200.

The previous prime is 201453173. The next prime is 201453299. The reversal of 201453220 is 22354102.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8596 + ... + 21835.

It is an arithmetic number, because the mean of its divisors is an integer number (17680992).

Almost surely, 2^201453220 is an apocalyptic number.

201453220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201453220 is an abundant number, since it is smaller than the sum of its proper divisors (222890588).

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

201453220 is a wasteful number, since it uses less digits than its factorization.

201453220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30771 (or 30769 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 201453220 is about 14193.4217157104. The cubic root of 201453220 is about 586.2165445089.

The spelling of 201453220 in words is "two hundred one million, four hundred fifty-three thousand, two hundred twenty".