10447720 has 64 divisors (see below), whose sum is σ = 25272000. Its totient is φ = 3875328.

The previous prime is 10447711. The next prime is 10447747. The reversal of 10447720 is 2774401.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44724 + ... + 44956.

It is an arithmetic number, because the mean of its divisors is an integer number (394875).

Almost surely, 2^10447720 is an apocalyptic number.

10447720 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 10447720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12636000).

10447720 is an abundant number, since it is smaller than the sum of its proper divisors (14824280).

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

10447720 is a wasteful number, since it uses less digits than its factorization.

10447720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322 (or 318 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 25.

The square root of 10447720 is about 3232.2933035231. The cubic root of 10447720 is about 218.6119215685.

The spelling of 10447720 in words is "ten million, four hundred forty-seven thousand, seven hundred twenty".