10840720 has 80 divisors (see below), whose sum is σ = 27998208. Its totient is φ = 3870720.

The previous prime is 10840703. The next prime is 10840721. The reversal of 10840720 is 2704801.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 10840691 and 10840700.

It is not an unprimeable number, because it can be changed into a prime (10840721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85297 + ... + 85423.

Almost surely, 2^10840720 is an apocalyptic number.

10840720 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 10840720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13999104).

10840720 is an abundant number, since it is smaller than the sum of its proper divisors (17157488).

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

10840720 is a wasteful number, since it uses less digits than its factorization.

10840720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248 (or 242 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 10840720 is about 3292.5248670283. The cubic root of 10840720 is about 221.3193447716.

The spelling of 10840720 in words is "ten million, eight hundred forty thousand, seven hundred twenty".