38636994 has 48 divisors (see below), whose sum is σ = 89439840. Its totient is φ = 11088000.

The previous prime is 38636981. The next prime is 38636999. The reversal of 38636994 is 49963683.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38636999) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12394 + ... + 15194.

It is an arithmetic number, because the mean of its divisors is an integer number (1863330).

Almost surely, 2^38636994 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38636994, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44719920).

38636994 is an abundant number, since it is smaller than the sum of its proper divisors (50802846).

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

38636994 is a wasteful number, since it uses less digits than its factorization.

38636994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2847 (or 2836 counting only the distinct ones).

The product of its digits is 839808, while the sum is 48.

The square root of 38636994 is about 6215.8663113037. The cubic root of 38636994 is about 338.0657003803.

The spelling of 38636994 in words is "thirty-eight million, six hundred thirty-six thousand, nine hundred ninety-four".