220725744 has 20 divisors (see below), whose sum is σ = 570208296. Its totient is φ = 73575232.

The previous prime is 220725709. The next prime is 220725749. The reversal of 220725744 is 447527022.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220725749) 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, 2299179 + ... + 2299274.

Almost surely, 2^220725744 is an apocalyptic number.

220725744 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

220725744 is an abundant number, since it is smaller than the sum of its proper divisors (349482552).

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

220725744 is a wasteful number, since it uses less digits than its factorization.

220725744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4598464 (or 4598458 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 33.

The square root of 220725744 is about 14856.8416562875. The cubic root of 220725744 is about 604.3441601015.

The spelling of 220725744 in words is "two hundred twenty million, seven hundred twenty-five thousand, seven hundred forty-four".