220345492 has 6 divisors (see below), whose sum is σ = 385604618. Its totient is φ = 110172744.

The previous prime is 220345453. The next prime is 220345507. The reversal of 220345492 is 294543022.

It can be written as a sum of positive squares in only one way, i.e., 220344336 + 1156 = 14844^2 + 34^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27543183 + ... + 27543190.

Almost surely, 2^220345492 is an apocalyptic number.

It is an amenable number.

220345492 is a deficient number, since it is larger than the sum of its proper divisors (165259126).

220345492 is a wasteful number, since it uses less digits than its factorization.

220345492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55086377 (or 55086375 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 220345492 is about 14844.0389382405. The cubic root of 220345492 is about 603.9969189791.

The spelling of 220345492 in words is "two hundred twenty million, three hundred forty-five thousand, four hundred ninety-two".