221732048 has 10 divisors (see below), whose sum is σ = 429605874. Its totient is φ = 110866016.

The previous prime is 221732039. The next prime is 221732053. The reversal of 221732048 is 840237122.

It can be written as a sum of positive squares in only one way, i.e., 217031824 + 4700224 = 14732^2 + 2168^2 .

It is a super-2 number, since 2×221732048² = 98330202220548608, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 221732048.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6929111 + ... + 6929142.

Almost surely, 2^221732048 is an apocalyptic number.

It is an amenable number.

221732048 is a deficient number, since it is larger than the sum of its proper divisors (207873826).

221732048 is a wasteful number, since it uses less digits than its factorization.

221732048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13858261 (or 13858255 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 221732048 is about 14890.6698304677. The cubic root of 221732048 is about 605.2611835882.

The spelling of 221732048 in words is "two hundred twenty-one million, seven hundred thirty-two thousand, forty-eight".