3281542949 has 4 divisors (see below), whose sum is σ = 3282147360. Its totient is φ = 3280938540.

The previous prime is 3281542933. The next prime is 3281542969. The reversal of 3281542949 is 9492451823.

It is a happy number.

3281542949 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3281542949 - 2⁴ = 3281542933 is a prime.

It is a super-4 number, since 4×3281542949⁴ (a number of 39 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3281542969) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 293987 + ... + 304944.

It is an arithmetic number, because the mean of its divisors is an integer number (820536840).

Almost surely, 2^3281542949 is an apocalyptic number.

It is an amenable number.

3281542949 is a deficient number, since it is larger than the sum of its proper divisors (604411).

3281542949 is an equidigital number, since it uses as much as digits as its factorization.

3281542949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604410.

The product of its digits is 622080, while the sum is 47.

The square root of 3281542949 is about 57284.7531983860. The cubic root of 3281542949 is about 1486.0247095032.

The spelling of 3281542949 in words is "three billion, two hundred eighty-one million, five hundred forty-two thousand, nine hundred forty-nine".