220657372 has 12 divisors (see below), whose sum is σ = 415854376. Its totient is φ = 101841840.

The previous prime is 220657351. The next prime is 220657379. The reversal of 220657372 is 273756022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220657379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2121654 + ... + 2121757.

Almost surely, 2^220657372 is an apocalyptic number.

It is an amenable number.

220657372 is a deficient number, since it is larger than the sum of its proper divisors (195197004).

220657372 is a wasteful number, since it uses less digits than its factorization.

220657372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4243428 (or 4243426 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 34.

The square root of 220657372 is about 14854.5404506501. The cubic root of 220657372 is about 604.2817531142.

The spelling of 220657372 in words is "two hundred twenty million, six hundred fifty-seven thousand, three hundred seventy-two".