3949649434 has 32 divisors (see below), whose sum is σ = 6412910400. Its totient is φ = 1818028800.

The previous prime is 3949649419. The next prime is 3949649479. The reversal of 3949649434 is 4349469493.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1687437 + ... + 1689775.

It is an arithmetic number, because the mean of its divisors is an integer number (200403450).

Almost surely, 2^3949649434 is an apocalyptic number.

3949649434 is a deficient number, since it is larger than the sum of its proper divisors (2463260966).

3949649434 is a wasteful number, since it uses less digits than its factorization.

3949649434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3598.

The product of its digits is 10077696, while the sum is 55.

The square root of 3949649434 is about 62846.2364346506. The cubic root of 3949649434 is about 1580.7123629058.

The spelling of 3949649434 in words is "three billion, nine hundred forty-nine million, six hundred forty-nine thousand, four hundred thirty-four".