220315642 has 8 divisors (see below), whose sum is σ = 330640596. Its totient is φ = 110102112.

The previous prime is 220315637. The next prime is 220315651. The reversal of 220315642 is 246513022.

It can be written as a sum of positive squares in 2 ways, for example, as 215825481 + 4490161 = 14691^2 + 2119^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22723 + ... + 30934.

Almost surely, 2^220315642 is an apocalyptic number.

220315642 is a deficient number, since it is larger than the sum of its proper divisors (110324954).

220315642 is a wasteful number, since it uses less digits than its factorization.

220315642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55712.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 220315642 is about 14843.0334500735. The cubic root of 220315642 is about 603.9696434460.

Adding to 220315642 its reverse (246513022), we get a palindrome (466828664).

The spelling of 220315642 in words is "two hundred twenty million, three hundred fifteen thousand, six hundred forty-two".