3581237949 has 8 divisors (see below), whose sum is σ = 4796397312. Its totient is φ = 2376785280.

The previous prime is 3581237917. The next prime is 3581237983. The reversal of 3581237949 is 9497321853.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3581237949 - 2⁵ = 3581237917 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3581237449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2675892 + ... + 2677229.

It is an arithmetic number, because the mean of its divisors is an integer number (599549664).

Almost surely, 2^3581237949 is an apocalyptic number.

It is an amenable number.

3581237949 is a deficient number, since it is larger than the sum of its proper divisors (1215159363).

3581237949 is a wasteful number, since it uses less digits than its factorization.

3581237949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5353347.

The product of its digits is 1632960, while the sum is 51.

The square root of 3581237949 is about 59843.4453302949. The cubic root of 3581237949 is about 1529.9517191822.

The spelling of 3581237949 in words is "three billion, five hundred eighty-one million, two hundred thirty-seven thousand, nine hundred forty-nine".