3538994000 has 80 divisors (see below), whose sum is σ = 8573434896. Its totient is φ = 1412928000.

The previous prime is 3538993967. The next prime is 3538994059. The reversal of 3538994000 is 4998353.

It can be written as a sum of positive squares in 8 ways, for example, as 1724574784 + 1814419216 = 41528^2 + 42596^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1320662 + ... + 1323338.

Almost surely, 2^3538994000 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 3538994000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4286717448).

3538994000 is an abundant number, since it is smaller than the sum of its proper divisors (5034440896).

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

3538994000 is a wasteful number, since it uses less digits than its factorization.

3538994000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3361 (or 3345 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 3538994000 is about 59489.4444418504. Note that the first 5 decimals coincide. The cubic root of 3538994000 is about 1523.9121866906.

The spelling of 3538994000 in words is "three billion, five hundred thirty-eight million, nine hundred ninety-four thousand".