8820400500 has 96 divisors (see below), whose sum is σ = 28538939520. Its totient is φ = 2352103200.

The previous prime is 8820400487. The next prime is 8820400583. The reversal of 8820400500 is 50040288.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 313182 + ... + 340181.

It is an arithmetic number, because the mean of its divisors is an integer number (297280620).

Almost surely, 2^8820400500 is an apocalyptic number.

It is an amenable number.

8820400500 is an abundant number, since it is smaller than the sum of its proper divisors (19718539020).

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

8820400500 is a wasteful number, since it uses less digits than its factorization.

8820400500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653391 (or 653373 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 8820400500 is about 93916.9872813220. The cubic root of 8820400500 is about 2066.1543807715.

Adding to 8820400500 its reverse (50040288), we get a palindrome (8870440788).

It can be divided in two parts, 8820400 and 500, that added together give a square (8820900 = 2970²).

The spelling of 8820400500 in words is "eight billion, eight hundred twenty million, four hundred thousand, five hundred".