3954490866 has 24 divisors (see below), whose sum is σ = 8863515180. Its totient is φ = 1272709536.

The previous prime is 3954490861. The next prime is 3954490867. The reversal of 3954490866 is 6680944593.

3954490866 is a `hidden beast` number, since 3 + 9 + 544 + 90 + 8 + 6 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3566597841 + 387893025 = 59721^2 + 19695^2 .

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (3954490861) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3787305 + ... + 3788348.

Almost surely, 2^3954490866 is an apocalyptic number.

3954490866 is an abundant number, since it is smaller than the sum of its proper divisors (4909024314).

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

3954490866 is a wasteful number, since it uses less digits than its factorization.

3954490866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7575690 (or 7575687 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 54.

The square root of 3954490866 is about 62884.7427123623. The cubic root of 3954490866 is about 1581.3579718156.

The spelling of 3954490866 in words is "three billion, nine hundred fifty-four million, four hundred ninety thousand, eight hundred sixty-six".