220706949 has 8 divisors (see below), whose sum is σ = 303768832. Its totient is φ = 142391520.

The previous prime is 220706947. The next prime is 220706953. The reversal of 220706949 is 949607022.

220706949 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 220706949 - 2¹ = 220706947 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 (220706947) 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, 1186504 + ... + 1186689.

It is an arithmetic number, because the mean of its divisors is an integer number (37971104).

Almost surely, 2^220706949 is an apocalyptic number.

It is an amenable number.

220706949 is a deficient number, since it is larger than the sum of its proper divisors (83061883).

220706949 is a wasteful number, since it uses less digits than its factorization.

220706949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2373227.

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 220706949 is about 14856.2091059597. The cubic root of 220706949 is about 604.3270061277.

The spelling of 220706949 in words is "two hundred twenty million, seven hundred six thousand, nine hundred forty-nine".