220738684 has 6 divisors (see below), whose sum is σ = 386292704. Its totient is φ = 110369340.

The previous prime is 220738681. The next prime is 220738723. The reversal of 220738684 is 486837022.

It is a super-2 number, since 2×220738684² = 97451133228103712, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220738681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27592332 + ... + 27592339.

Almost surely, 2^220738684 is an apocalyptic number.

It is an amenable number.

220738684 is a deficient number, since it is larger than the sum of its proper divisors (165554020).

220738684 is a wasteful number, since it uses less digits than its factorization.

220738684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55184675 (or 55184673 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 220738684 is about 14857.2771395031. The cubic root of 220738684 is about 604.3559697202.

The spelling of 220738684 in words is "two hundred twenty million, seven hundred thirty-eight thousand, six hundred eighty-four".