220402347 has 48 divisors (see below), whose sum is σ = 337841280. Its totient is φ = 127600000.

The previous prime is 220402327. The next prime is 220402363. The reversal of 220402347 is 743204022.

It is not a de Polignac number, because 220402347 - 2⁶ = 220402283 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220402327) 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 47 ways as a sum of consecutive naturals, for example, 877972 + ... + 878222.

It is an arithmetic number, because the mean of its divisors is an integer number (7038360).

Almost surely, 2^220402347 is an apocalyptic number.

220402347 is a deficient number, since it is larger than the sum of its proper divisors (117438933).

220402347 is a wasteful number, since it uses less digits than its factorization.

220402347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376 (or 365 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 24.

The square root of 220402347 is about 14845.9538932330. The cubic root of 220402347 is about 604.0488636038.

Adding to 220402347 its reverse (743204022), we get a palindrome (963606369).

The spelling of 220402347 in words is "two hundred twenty million, four hundred two thousand, three hundred forty-seven".