8484640240 has 40 divisors (see below), whose sum is σ = 19745968320. Its totient is φ = 3390556416.

The previous prime is 8484640231. The next prime is 8484640249. The reversal of 8484640240 is 420464848.

It is an interprime number because it is at equal distance from previous prime (8484640231) and next prime (8484640249).

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 8484640193 and 8484640202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8484640249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32082 + ... + 134158.

It is an arithmetic number, because the mean of its divisors is an integer number (493649208).

Almost surely, 2^8484640240 is an apocalyptic number.

8484640240 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8484640240 is an abundant number, since it is smaller than the sum of its proper divisors (11261328080).

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

8484640240 is a wasteful number, since it uses less digits than its factorization.

8484640240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103129 (or 103123 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 40.

The square root of 8484640240 is about 92112.1069132609. The cubic root of 8484640240 is about 2039.5975304961.

The spelling of 8484640240 in words is "eight billion, four hundred eighty-four million, six hundred forty thousand, two hundred forty".