7386645040 has 80 divisors (see below), whose sum is σ = 17939351808. Its totient is φ = 2823245568.

The previous prime is 7386645023. The next prime is 7386645047. The reversal of 7386645040 is 405466837.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (7386645047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2727367 + ... + 2730073.

Almost surely, 2^7386645040 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 7386645040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8969675904).

7386645040 is an abundant number, since it is smaller than the sum of its proper divisors (10552706768).

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

7386645040 is a wasteful number, since it uses less digits than its factorization.

7386645040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4226 (or 4220 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 43.

The square root of 7386645040 is about 85945.5934879735. The cubic root of 7386645040 is about 1947.5221685969.

The spelling of 7386645040 in words is "seven billion, three hundred eighty-six million, six hundred forty-five thousand, forty".