220403412 has 36 divisors (see below), whose sum is σ = 562656276. Its totient is φ = 72739200.

The previous prime is 220403389. The next prime is 220403437. The reversal of 220403412 is 214304022.

220403412 is a `hidden beast` number, since 220 + 403 + 41 + 2 = 666.

220403412 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 118069956 + 102333456 = 10866^2 + 10116^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 26673 + ... + 33944.

It is an arithmetic number, because the mean of its divisors is an integer number (15629341).

Almost surely, 2^220403412 is an apocalyptic number.

It is an amenable number.

220403412 is an abundant number, since it is smaller than the sum of its proper divisors (342252864).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

220403412 is a wasteful number, since it uses less digits than its factorization.

220403412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60728 (or 60723 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 220403412 is about 14845.9897615484. The cubic root of 220403412 is about 604.0498365381.

Adding to 220403412 its reverse (214304022), we get a palindrome (434707434).

It can be divided in two parts, 22040 and 3412, that added together give a palindrome (25452).

The spelling of 220403412 in words is "two hundred twenty million, four hundred three thousand, four hundred twelve".