3261543400 has 48 divisors (see below), whose sum is σ = 7628574240. Its totient is φ = 1296792000.

The previous prime is 3261543391. The next prime is 3261543403. The reversal of 3261543400 is 43451623.

3261543400 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (3261543403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15426 + ... + 82225.

It is an arithmetic number, because the mean of its divisors is an integer number (158928630).

Almost surely, 2^3261543400 is an apocalyptic number.

It is an amenable number.

3261543400 is an abundant number, since it is smaller than the sum of its proper divisors (4367030840).

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

3261543400 is a wasteful number, since it uses less digits than its factorization.

3261543400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97834 (or 97825 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 3261543400 is about 57109.9238311521. The cubic root of 3261543400 is about 1482.9996685292. Note that the first 3 decimals are identical.

The spelling of 3261543400 in words is "three billion, two hundred sixty-one million, five hundred forty-three thousand, four hundred".