220992477 has 8 divisors (see below), whose sum is σ = 310164960. Its totient is φ = 139574160.

The previous prime is 220992463. The next prime is 220992517. The reversal of 220992477 is 774299022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 220992477 - 2¹⁰ = 220991453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220992427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1938474 + ... + 1938587.

It is an arithmetic number, because the mean of its divisors is an integer number (38770620).

Almost surely, 2^220992477 is an apocalyptic number.

It is an amenable number.

220992477 is a deficient number, since it is larger than the sum of its proper divisors (89172483).

220992477 is a wasteful number, since it uses less digits than its factorization.

220992477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3877083.

The product of its (nonzero) digits is 127008, while the sum is 42.

The square root of 220992477 is about 14865.8157192937. The cubic root of 220992477 is about 604.5874992468.

The spelling of 220992477 in words is "two hundred twenty million, nine hundred ninety-two thousand, four hundred seventy-seven".