204201003420 has 72 divisors (see below), whose sum is σ = 619516038960. Its totient is φ = 54444253440.

The previous prime is 204201003373. The next prime is 204201003437. The reversal of 204201003420 is 24300102402.

204201003420 is a `hidden beast` number, since 204 + 20 + 100 + 342 + 0 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 204201003393 and 204201003402.

It is a congruent number.

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, 987616 + ... + 1176344.

It is an arithmetic number, because the mean of its divisors is an integer number (8604389430).

Almost surely, 2^204201003420 is an apocalyptic number.

204201003420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204201003420 is an abundant number, since it is smaller than the sum of its proper divisors (415315035540).

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

204201003420 is a wasteful number, since it uses less digits than its factorization.

204201003420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194755 (or 194750 counting only the distinct ones).

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

Adding to 204201003420 its reverse (24300102402), we get a palindrome (228501105822).

The spelling of 204201003420 in words is "two hundred four billion, two hundred one million, three thousand, four hundred twenty".