220392772 has 6 divisors (see below), whose sum is σ = 385687358. Its totient is φ = 110196384.

The previous prime is 220392769. The next prime is 220392787. The reversal of 220392772 is 277293022.

It can be written as a sum of positive squares in only one way, i.e., 211004676 + 9388096 = 14526^2 + 3064^2 .

It is an unprimeable number.

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, 27549093 + ... + 27549100.

Almost surely, 2^220392772 is an apocalyptic number.

It is an amenable number.

220392772 is a deficient number, since it is larger than the sum of its proper divisors (165294586).

220392772 is a wasteful number, since it uses less digits than its factorization.

220392772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55098197 (or 55098195 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 220392772 is about 14845.6314112940. The cubic root of 220392772 is about 604.0401161900.

The spelling of 220392772 in words is "two hundred twenty million, three hundred ninety-two thousand, seven hundred seventy-two".