3949275486 has 96 divisors (see below), whose sum is σ = 8803676160. Its totient is φ = 1179964032.

The previous prime is 3949275469. The next prime is 3949275493. The reversal of 3949275486 is 6845729493.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8244595 + ... + 8245073.

It is an arithmetic number, because the mean of its divisors is an integer number (91704960).

Almost surely, 2^3949275486 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3949275486, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4401838080).

3949275486 is an abundant number, since it is smaller than the sum of its proper divisors (4854400674).

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

3949275486 is a wasteful number, since it uses less digits than its factorization.

3949275486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 730 (or 717 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 57.

The square root of 3949275486 is about 62843.2612616500. The cubic root of 3949275486 is about 1580.6624746906.

The spelling of 3949275486 in words is "three billion, nine hundred forty-nine million, two hundred seventy-five thousand, four hundred eighty-six".