8488207640 has 64 divisors (see below), whose sum is σ = 20986918560. Its totient is φ = 3064069120.

The previous prime is 8488207639. The next prime is 8488207643. The reversal of 8488207640 is 467028848.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8488207643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10127 + ... + 130686.

Almost surely, 2^8488207640 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 8488207640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10493459280).

8488207640 is an abundant number, since it is smaller than the sum of its proper divisors (12498710920).

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

8488207640 is a wasteful number, since it uses less digits than its factorization.

8488207640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140972 (or 140968 counting only the distinct ones).

The product of its (nonzero) digits is 688128, while the sum is 47.

The square root of 8488207640 is about 92131.4693250900. The cubic root of 8488207640 is about 2039.8833426819.

The spelling of 8488207640 in words is "eight billion, four hundred eighty-eight million, two hundred seven thousand, six hundred forty".