10189638 has 40 divisors (see below), whose sum is σ = 23580480. Its totient is φ = 3285360.

The previous prime is 10189633. The next prime is 10189651. The reversal of 10189638 is 83698101.

10189638 is a `hidden beast` number, since 1 + 0 + 18 + 9 + 638 = 666.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10189633) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4008 + ... + 6036.

It is an arithmetic number, because the mean of its divisors is an integer number (589512).

Almost surely, 2^10189638 is an apocalyptic number.

10189638 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 10189638, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11790240).

10189638 is an abundant number, since it is smaller than the sum of its proper divisors (13390842).

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

10189638 is a wasteful number, since it uses less digits than its factorization.

10189638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2074 (or 2065 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 10189638 is about 3192.1212382991. The cubic root of 10189638 is about 216.7968254098.

The spelling of 10189638 in words is "ten million, one hundred eighty-nine thousand, six hundred thirty-eight".