3915449144 has 16 divisors (see below), whose sum is σ = 7342135920. Its totient is φ = 1957546240.

The previous prime is 3915449143. The next prime is 3915449173. The reversal of 3915449144 is 4419445193.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 3915449095 and 3915449104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3915449143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143909 + ... + 168939.

It is an arithmetic number, because the mean of its divisors is an integer number (458883495).

Almost surely, 2^3915449144 is an apocalyptic number.

It is an amenable number.

3915449144 is a deficient number, since it is larger than the sum of its proper divisors (3426686776).

3915449144 is a wasteful number, since it uses less digits than its factorization.

3915449144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44590 (or 44586 counting only the distinct ones).

The product of its digits is 311040, while the sum is 44.

The square root of 3915449144 is about 62573.5498753267. The cubic root of 3915449144 is about 1576.1366306429.

The spelling of 3915449144 in words is "three billion, nine hundred fifteen million, four hundred forty-nine thousand, one hundred forty-four".