3804645420 has 36 divisors (see below), whose sum is σ = 11540758320. Its totient is φ = 1014572064.

The previous prime is 3804645409. The next prime is 3804645421. The reversal of 3804645420 is 245464083.

3804645420 is a `hidden beast` number, since 3 + 8 + 0 + 4 + 645 + 4 + 2 + 0 = 666.

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 (36).

It is not an unprimeable number, because it can be changed into a prime (3804645421) 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 11 ways as a sum of consecutive naturals, for example, 10568280 + ... + 10568639.

It is an arithmetic number, because the mean of its divisors is an integer number (320576620).

Almost surely, 2^3804645420 is an apocalyptic number.

3804645420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3804645420 is an abundant number, since it is smaller than the sum of its proper divisors (7736112900).

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

3804645420 is a wasteful number, since it uses less digits than its factorization.

3804645420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21136934 (or 21136929 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 36.

The square root of 3804645420 is about 61681.8078528832. The cubic root of 3804645420 is about 1561.1263807935.

The spelling of 3804645420 in words is "three billion, eight hundred four million, six hundred forty-five thousand, four hundred twenty".