3894990288 has 80 divisors (see below), whose sum is σ = 11870478336. Its totient is φ = 1076952960.

The previous prime is 3894990233. The next prime is 3894990289. The reversal of 3894990288 is 8820994983.

It is a happy number.

It is a super-2 number, since 2×3894990288² = 30341898687228645888, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3894990289) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 176556 + ... + 197387.

Almost surely, 2^3894990288 is an apocalyptic number.

It is an amenable number.

3894990288 is an abundant number, since it is smaller than the sum of its proper divisors (7975488048).

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

3894990288 is a wasteful number, since it uses less digits than its factorization.

3894990288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373992 (or 373986 counting only the distinct ones).

The product of its (nonzero) digits is 8957952, while the sum is 60.

The square root of 3894990288 is about 62409.8572983467. The cubic root of 3894990288 is about 1573.3866456288.

The spelling of 3894990288 in words is "three billion, eight hundred ninety-four million, nine hundred ninety thousand, two hundred eighty-eight".