3949531944 has 16 divisors (see below), whose sum is σ = 9873829920. Its totient is φ = 1316510640.

The previous prime is 3949531933. The next prime is 3949532017. The reversal of 3949531944 is 4491359493.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82281892 + ... + 82281939.

It is an arithmetic number, because the mean of its divisors is an integer number (617114370).

Almost surely, 2^3949531944 is an apocalyptic number.

It is an amenable number.

3949531944 is an abundant number, since it is smaller than the sum of its proper divisors (5924297976).

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

3949531944 is a wasteful number, since it uses less digits than its factorization.

3949531944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164563840 (or 164563836 counting only the distinct ones).

The product of its digits is 2099520, while the sum is 51.

The square root of 3949531944 is about 62845.3016859654. The cubic root of 3949531944 is about 1580.6966889630.

The spelling of 3949531944 in words is "three billion, nine hundred forty-nine million, five hundred thirty-one thousand, nine hundred forty-four".