220279039 has 4 divisors (see below), whose sum is σ = 220933024. Its totient is φ = 219625056.

The previous prime is 220279021. The next prime is 220279051. The reversal of 220279039 is 930972022.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220279039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220278995 and 220279013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220279139) 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, 326487 + ... + 327160.

It is an arithmetic number, because the mean of its divisors is an integer number (55233256).

Almost surely, 2^220279039 is an apocalyptic number.

220279039 is a deficient number, since it is larger than the sum of its proper divisors (653985).

220279039 is an equidigital number, since it uses as much as digits as its factorization.

220279039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653984.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 220279039 is about 14841.8003961784. The cubic root of 220279039 is about 603.9361939747.

The spelling of 220279039 in words is "two hundred twenty million, two hundred seventy-nine thousand, thirty-nine".