8420907800 has 24 divisors (see below), whose sum is σ = 19578611100. Its totient is φ = 3368363040.

The previous prime is 8420907791. The next prime is 8420907827. The reversal of 8420907800 is 87090248.

It is a super-2 number, since 2×8420907800² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21052070 + ... + 21052469.

Almost surely, 2^8420907800 is an apocalyptic number.

It is an amenable number.

8420907800 is an abundant number, since it is smaller than the sum of its proper divisors (11157703300).

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

8420907800 is a wasteful number, since it uses less digits than its factorization.

8420907800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42104555 (or 42104546 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 8420907800 is about 91765.5044120611. The cubic root of 8420907800 is about 2034.4778727564.

The spelling of 8420907800 in words is "eight billion, four hundred twenty million, nine hundred seven thousand, eight hundred".