3894899904 has 280 divisors, whose sum is σ = 13290365088. Its totient is φ = 1104814080.

The previous prime is 3894899891. The next prime is 3894899909. The reversal of 3894899904 is 4099984983.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (3894899909) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 6567832 + ... + 6568424.

Almost surely, 2^3894899904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3894899904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6645182544).

3894899904 is an abundant number, since it is smaller than the sum of its proper divisors (9395465184).

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

3894899904 is a wasteful number, since it uses less digits than its factorization.

3894899904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 805 (or 786 counting only the distinct ones).

The product of its (nonzero) digits is 20155392, while the sum is 63.

The square root of 3894899904 is about 62409.1331777649. The cubic root of 3894899904 is about 1573.3744752879.

The spelling of 3894899904 in words is "three billion, eight hundred ninety-four million, eight hundred ninety-nine thousand, nine hundred four".