2543306364 has 90 divisors (see below), whose sum is σ = 6731034464. Its totient is φ = 837397440.

The previous prime is 2543306357. The next prime is 2543306387. The reversal of 2543306364 is 4636033452.

It is a super-2 number, since 2×2543306364² = 12936814522325800992, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 2565909 + ... + 2566899.

Almost surely, 2^2543306364 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 2543306364, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3365517232).

2543306364 is an abundant number, since it is smaller than the sum of its proper divisors (4187728100).

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

2543306364 is an equidigital number, since it uses as much as digits as its factorization.

2543306364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1185 (or 1085 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 36.

The square root of 2543306364 is about 50431.2042687858. The cubic root of 2543306364 is about 1365.0007583621. Note that the first 3 decimals are identical.

The spelling of 2543306364 in words is "two billion, five hundred forty-three million, three hundred six thousand, three hundred sixty-four".