10438890 has 64 divisors (see below), whose sum is σ = 31242240. Its totient is φ = 2168640.

The previous prime is 10438889. The next prime is 10438891. The reversal of 10438890 is 9883401.

It is an interprime number because it is at equal distance from previous prime (10438889) and next prime (10438891).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (10438891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51 + ... + 4569.

It is an arithmetic number, because the mean of its divisors is an integer number (488160).

Almost surely, 2^10438890 is an apocalyptic number.

10438890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 10438890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15621120).

10438890 is an abundant number, since it is smaller than the sum of its proper divisors (20803350).

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

10438890 is a wasteful number, since it uses less digits than its factorization.

10438890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4547.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 10438890 is about 3230.9271115270. The cubic root of 10438890 is about 218.5503168248.

The spelling of 10438890 in words is "ten million, four hundred thirty-eight thousand, eight hundred ninety".