220728414 has 16 divisors (see below), whose sum is σ = 443898000. Its totient is φ = 73169280.

The previous prime is 220728407. The next prime is 220728419. The reversal of 220728414 is 414827022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220728419) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100539 + ... + 102710.

It is an arithmetic number, because the mean of its divisors is an integer number (27743625).

Almost surely, 2^220728414 is an apocalyptic number.

220728414 is an abundant number, since it is smaller than the sum of its proper divisors (223169586).

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

220728414 is a wasteful number, since it uses less digits than its factorization.

220728414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203435.

The product of its (nonzero) digits is 7168, while the sum is 30.

The square root of 220728414 is about 14856.9315136067. The cubic root of 220728414 is about 604.3465968999.

The spelling of 220728414 in words is "two hundred twenty million, seven hundred twenty-eight thousand, four hundred fourteen".