8540996394 has 64 divisors (see below), whose sum is σ = 20624486400. Its totient is φ = 2303443008.

The previous prime is 8540996357. The next prime is 8540996437. The reversal of 8540996394 is 4936990458.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 201727 + ... + 240365.

It is an arithmetic number, because the mean of its divisors is an integer number (322257600).

Almost surely, 2^8540996394 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8540996394, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10312243200).

8540996394 is an abundant number, since it is smaller than the sum of its proper divisors (12083490006).

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

8540996394 is a wasteful number, since it uses less digits than its factorization.

8540996394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38947.

The product of its (nonzero) digits is 8398080, while the sum is 57.

The square root of 8540996394 is about 92417.5112952086. The cubic root of 8540996394 is about 2044.1033320859.

The spelling of 8540996394 in words is "eight billion, five hundred forty million, nine hundred ninety-six thousand, three hundred ninety-four".