10538920 has 96 divisors (see below), whose sum is σ = 29138400. Its totient is φ = 3411072.

The previous prime is 10538911. The next prime is 10538923. The reversal of 10538920 is 2983501.

It is a super-2 number, since 2×10538920² = 222137669532800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (10538923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37099 + ... + 37381.

It is an arithmetic number, because the mean of its divisors is an integer number (303525).

Almost surely, 2^10538920 is an apocalyptic number.

10538920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10538920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14569200).

10538920 is an abundant number, since it is smaller than the sum of its proper divisors (18599480).

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

10538920 is a wasteful number, since it uses less digits than its factorization.

10538920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327 (or 316 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 10538920 is about 3246.3702807905. The cubic root of 10538920 is about 219.2461803531.

The spelling of 10538920 in words is "ten million, five hundred thirty-eight thousand, nine hundred twenty".