8140554240 has 612 divisors, whose sum is σ = 32812838424. Its totient is φ = 1717567488.

The previous prime is 8140554173. The next prime is 8140554241. The reversal of 8140554240 is 424550418.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8140554241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 626196474 + ... + 626196486.

Almost surely, 2^8140554240 is an apocalyptic number.

8140554240 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8140554240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16406419212).

8140554240 is an abundant number, since it is smaller than the sum of its proper divisors (24672284184).

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

8140554240 is an equidigital number, since it uses as much as digits as its factorization.

8140554240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80 (or 30 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 33.

The square root of 8140554240 is about 90225.0200332480. The cubic root of 8140554240 is about 2011.6449196647.

The spelling of 8140554240 in words is "eight billion, one hundred forty million, five hundred fifty-four thousand, two hundred forty".