10813440 has 136 divisors (see below), whose sum is σ = 37748448. Its totient is φ = 2621440.

The previous prime is 10813423. The next prime is 10813457. The reversal of 10813440 is 4431801.

It is an interprime number because it is at equal distance from previous prime (10813423) and next prime (10813457).

It is a nialpdrome in base 4 and base 16.

It is a zygodrome in base 4.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 983035 + ... + 983045.

Almost surely, 2^10813440 is an apocalyptic number.

10813440 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 10813440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18874224).

10813440 is an abundant number, since it is smaller than the sum of its proper divisors (26935008).

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

10813440 is an frugal number, since it uses more digits than its factorization.

10813440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51 (or 21 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 10813440 is about 3288.3795401383. The cubic root of 10813440 is about 221.1335433604.

It can be divided in two parts, 10 and 813440, that added together give a triangular number (813450 = T₁₂₇₅).

The spelling of 10813440 in words is "ten million, eight hundred thirteen thousand, four hundred forty".