220399453 has 4 divisors (see below), whose sum is σ = 220439740. Its totient is φ = 220359168.

The previous prime is 220399451. The next prime is 220399457. The reversal of 220399453 is 354993022.

220399453 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 71876484 + 148522969 = 8478^2 + 12187^2 .

It is a cyclic number.

It is not a de Polignac number, because 220399453 - 2¹ = 220399451 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220399451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10350 + ... + 23407.

It is an arithmetic number, because the mean of its divisors is an integer number (55109935).

Almost surely, 2^220399453 is an apocalyptic number.

It is an amenable number.

220399453 is a deficient number, since it is larger than the sum of its proper divisors (40287).

220399453 is an equidigital number, since it uses as much as digits as its factorization.

220399453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40286.

The product of its (nonzero) digits is 58320, while the sum is 37.

The square root of 220399453 is about 14845.8564252791. The cubic root of 220399453 is about 604.0462197647.

The spelling of 220399453 in words is "two hundred twenty million, three hundred ninety-nine thousand, four hundred fifty-three".