220302693 has 16 divisors (see below), whose sum is σ = 351480640. Its totient is φ = 135570672.

The previous prime is 220302689. The next prime is 220302703. The reversal of 220302693 is 396203022.

It is not a de Polignac number, because 220302693 - 2² = 220302689 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220302613) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 313471 + ... + 314172.

It is an arithmetic number, because the mean of its divisors is an integer number (21967540).

Almost surely, 2^220302693 is an apocalyptic number.

It is an amenable number.

220302693 is a deficient number, since it is larger than the sum of its proper divisors (131177947).

220302693 is a wasteful number, since it uses less digits than its factorization.

220302693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627665 (or 627659 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 220302693 is about 14842.5972457653. The cubic root of 220302693 is about 603.9578104897.

The spelling of 220302693 in words is "two hundred twenty million, three hundred two thousand, six hundred ninety-three".