3683121904 has 160 divisors (see below), whose sum is σ = 9271406592. Its totient is φ = 1386950400.

The previous prime is 3683121901. The next prime is 3683121919. The reversal of 3683121904 is 4091213863.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3683121901) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4620834 + ... + 4621630.

Almost surely, 2^3683121904 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 3683121904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4635703296).

3683121904 is an abundant number, since it is smaller than the sum of its proper divisors (5588284688).

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

3683121904 is a wasteful number, since it uses less digits than its factorization.

3683121904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 876 (or 848 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 3683121904 is about 60688.7296291494. The cubic root of 3683121904 is about 1544.3249850605.

The spelling of 3683121904 in words is "three billion, six hundred eighty-three million, one hundred twenty-one thousand, nine hundred four".