10247440 has 80 divisors (see below), whose sum is σ = 28212480. Its totient is φ = 3386880.

The previous prime is 10247437. The next prime is 10247473. The reversal of 10247440 is 4474201.

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

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, 15925 + ... + 16555.

It is an arithmetic number, because the mean of its divisors is an integer number (352656).

Almost surely, 2^10247440 is an apocalyptic number.

10247440 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 10247440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14106240).

10247440 is an abundant number, since it is smaller than the sum of its proper divisors (17965040).

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

10247440 is a wasteful number, since it uses less digits than its factorization.

10247440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680 (or 674 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 22.

The square root of 10247440 is about 3201.1622889194. The cubic root of 10247440 is about 217.2059884370.

It can be divided in two parts, 1024 and 7440, that added together give a square (8464 = 92²).

The spelling of 10247440 in words is "ten million, two hundred forty-seven thousand, four hundred forty".