3949455834 has 40 divisors (see below), whose sum is σ = 8981816448. Its totient is φ = 1296832680.

The previous prime is 3949455791. The next prime is 3949455841. The reversal of 3949455834 is 4385549493.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 171082 + ... + 192789.

Almost surely, 2^3949455834 is an apocalyptic number.

3949455834 is an abundant number, since it is smaller than the sum of its proper divisors (5032360614).

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

3949455834 is a wasteful number, since it uses less digits than its factorization.

3949455834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363952 (or 363943 counting only the distinct ones).

The product of its digits is 9331200, while the sum is 54.

The square root of 3949455834 is about 62844.6961485216. The cubic root of 3949455834 is about 1580.6865352200.

The spelling of 3949455834 in words is "three billion, nine hundred forty-nine million, four hundred fifty-five thousand, eight hundred thirty-four".