3261043400 has 24 divisors (see below), whose sum is σ = 7581926370. Its totient is φ = 1304417280.

The previous prime is 3261043381. The next prime is 3261043403. The reversal of 3261043400 is 43401623.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 2315726884 + 945316516 = 48122^2 + 30746^2 .

It is not an unprimeable number, because it can be changed into a prime (3261043403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8152409 + ... + 8152808.

Almost surely, 2^3261043400 is an apocalyptic number.

It is an amenable number.

3261043400 is an abundant number, since it is smaller than the sum of its proper divisors (4320882970).

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

3261043400 is a wasteful number, since it uses less digits than its factorization.

3261043400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16305233 (or 16305224 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 3261043400 is about 57105.5461404582. The cubic root of 3261043400 is about 1482.9238825553.

The spelling of 3261043400 in words is "three billion, two hundred sixty-one million, forty-three thousand, four hundred".