8620988040 has 192 divisors, whose sum is σ = 32255832960. Its totient is φ = 1956049920.

The previous prime is 8620988027. The next prime is 8620988069. The reversal of 8620988040 is 408890268.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 332755 + ... + 357725.

It is an arithmetic number, because the mean of its divisors is an integer number (167999130).

Almost surely, 2^8620988040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8620988040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16127916480).

8620988040 is an abundant number, since it is smaller than the sum of its proper divisors (23634844920).

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

8620988040 is a wasteful number, since it uses less digits than its factorization.

8620988040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25132 (or 25125 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The square root of 8620988040 is about 92849.2759260943. The cubic root of 8620988040 is about 2050.4649383675.

The spelling of 8620988040 in words is "eight billion, six hundred twenty million, nine hundred eighty-eight thousand, forty".