3809849904 has 600 divisors, whose sum is σ = 14303013120. Its totient is φ = 954581760.

The previous prime is 3809849903. The next prime is 3809849917. The reversal of 3809849904 is 4099489083.

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

It is not an unprimeable number, because it can be changed into a prime (3809849903) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 122898369 + ... + 122898399.

Almost surely, 2^3809849904 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 3809849904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7151506560).

3809849904 is an abundant number, since it is smaller than the sum of its proper divisors (10493163216).

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

3809849904 is a wasteful number, since it uses less digits than its factorization.

3809849904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131 (or 85 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 54.

The square root of 3809849904 is about 61723.9815954869. The cubic root of 3809849904 is about 1561.8378930323.

The spelling of 3809849904 in words is "three billion, eight hundred nine million, eight hundred forty-nine thousand, nine hundred four".