10638408 has 64 divisors (see below), whose sum is σ = 29548800. Its totient is φ = 3164480.

The previous prime is 10638391. The next prime is 10638421. The reversal of 10638408 is 80483601.

It is a happy number.

It is a super-2 number, since 2×10638408² = 226351449548928, which contains 22 as substring.

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, 15235 + ... + 15917.

It is an arithmetic number, because the mean of its divisors is an integer number (461700).

Almost surely, 2^10638408 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 10638408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14774400).

10638408 is an abundant number, since it is smaller than the sum of its proper divisors (18910392).

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

10638408 is a wasteful number, since it uses less digits than its factorization.

10638408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 762 (or 758 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 10638408 is about 3261.6572474741. The cubic root of 10638408 is about 219.9339195476.

The spelling of 10638408 in words is "ten million, six hundred thirty-eight thousand, four hundred eight".