10489440 has 144 divisors (see below), whose sum is σ = 36472464. Its totient is φ = 2519040.

The previous prime is 10489421. The next prime is 10489441. The reversal of 10489440 is 4498401.

It is a super-2 number, since 2×10489440² = 220056703027200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 10489398 and 10489407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10489441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 255820 + ... + 255860.

It is an arithmetic number, because the mean of its divisors is an integer number (253281).

Almost surely, 2^10489440 is an apocalyptic number.

10489440 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 10489440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18236232).

10489440 is an abundant number, since it is smaller than the sum of its proper divisors (25983024).

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

10489440 is a wasteful number, since it uses less digits than its factorization.

10489440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113 (or 64 counting only the distinct ones).

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

The square root of 10489440 is about 3238.7404959336. The cubic root of 10489440 is about 218.9025232884.

The spelling of 10489440 in words is "ten million, four hundred eighty-nine thousand, four hundred forty".