220492801 has 9 divisors (see below), whose sum is σ = 228311553. Its totient is φ = 212934660.

The previous prime is 220492787. The next prime is 220492819. The reversal of 220492801 is 108294022.

The square root of 220492801 is 14849.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 220492801 - 2⁹ = 220492289 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 220492801.

It is not an unprimeable number, because it can be changed into a prime (220492861) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 460080 + ... + 460558.

Almost surely, 2^220492801 is an apocalyptic number.

220492801 is the 14849-th square number.

220492801 is the 7425-th centered octagonal number.

It is an amenable number.

220492801 is a deficient number, since it is larger than the sum of its proper divisors (7818752).

220492801 is an frugal number, since it uses more digits than its factorization.

220492801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1020 (or 510 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The cubic root of 220492801 is about 604.1314869874.

Multiplying 220492801 by its product of nonzero digits (2304), we get a square (508015413504 = 712752²).

The spelling of 220492801 in words is "two hundred twenty million, four hundred ninety-two thousand, eight hundred one".