220403433420 has 72 divisors (see below), whose sum is σ = 668958566640. Its totient is φ = 58738953600.

The previous prime is 220403433359. The next prime is 220403433463. The reversal of 220403433420 is 24334304022.

220403433420 is a `hidden beast` number, since 2 + 204 + 0 + 3 + 4 + 33 + 420 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66406 + ... + 667245.

Almost surely, 2^220403433420 is an apocalyptic number.

220403433420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220403433420 is an abundant number, since it is smaller than the sum of its proper divisors (448555133220).

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

220403433420 is a wasteful number, since it uses less digits than its factorization.

220403433420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 735335 (or 735330 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 27.

Adding to 220403433420 its reverse (24334304022), we get a palindrome (244737737442).

The spelling of 220403433420 in words is "two hundred twenty billion, four hundred three million, four hundred thirty-three thousand, four hundred twenty".