10280640 has 56 divisors (see below), whose sum is σ = 32644080. Its totient is φ = 2741248.

The previous prime is 10280593. The next prime is 10280651. The reversal of 10280640 is 4608201.

10280640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4395 + ... + 6314.

It is an arithmetic number, because the mean of its divisors is an integer number (582930).

Almost surely, 2^10280640 is an apocalyptic number.

10280640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10280640 is an abundant number, since it is smaller than the sum of its proper divisors (22363440).

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

10280640 is a wasteful number, since it uses less digits than its factorization.

10280640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10729 (or 10719 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 10280640 is about 3206.3437120808. The cubic root of 10280640 is about 217.4403059857.

Adding to 10280640 its reverse (4608201), we get a palindrome (14888841).

The spelling of 10280640 in words is "ten million, two hundred eighty thousand, six hundred forty".