10249720 has 64 divisors (see below), whose sum is σ = 25945920. Its totient is φ = 3615744.

The previous prime is 10249717. The next prime is 10249739. The reversal of 10249720 is 2794201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11532 + ... + 12388.

It is an arithmetic number, because the mean of its divisors is an integer number (405405).

Almost surely, 2^10249720 is an apocalyptic number.

10249720 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 10249720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12972960).

10249720 is an abundant number, since it is smaller than the sum of its proper divisors (15696200).

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

10249720 is a wasteful number, since it uses less digits than its factorization.

10249720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 904 (or 900 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 10249720 is about 3201.5183897645. The cubic root of 10249720 is about 217.2220962951. Note that the first 3 decimals are identical.

The spelling of 10249720 in words is "ten million, two hundred forty-nine thousand, seven hundred twenty".