220774593 has 16 divisors (see below), whose sum is σ = 327942720. Its totient is φ = 131175744.

The previous prime is 220774583. The next prime is 220774607. The reversal of 220774593 is 395477022.

It is not a de Polignac number, because 220774593 - 2¹⁰ = 220773569 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (220774553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96471 + ... + 98732.

It is an arithmetic number, because the mean of its divisors is an integer number (20496420).

Almost surely, 2^220774593 is an apocalyptic number.

It is an amenable number.

220774593 is a deficient number, since it is larger than the sum of its proper divisors (107168127).

220774593 is a wasteful number, since it uses less digits than its factorization.

220774593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195248.

The product of its (nonzero) digits is 105840, while the sum is 39.

The square root of 220774593 is about 14858.4855553990. The cubic root of 220774593 is about 604.3887394511.

The spelling of 220774593 in words is "two hundred twenty million, seven hundred seventy-four thousand, five hundred ninety-three".