10640730 has 48 divisors (see below), whose sum is σ = 26299872. Its totient is φ = 2755200.

The previous prime is 10640723. The next prime is 10640731. The reversal of 10640730 is 3704601.

10640730 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×10640730² = 226450269865800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10640697 and 10640706.

It is not an unprimeable number, because it can be changed into a prime (10640731) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50325 + ... + 50535.

It is an arithmetic number, because the mean of its divisors is an integer number (547914).

Almost surely, 2^10640730 is an apocalyptic number.

10640730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 10640730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13149936).

10640730 is an abundant number, since it is smaller than the sum of its proper divisors (15659142).

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

10640730 is a wasteful number, since it uses less digits than its factorization.

10640730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303 (or 262 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 10640730 is about 3262.0131820702. The cubic root of 10640730 is about 219.9499197302.

The spelling of 10640730 in words is "ten million, six hundred forty thousand, seven hundred thirty".