10025640 has 64 divisors (see below), whose sum is σ = 33422400. Its totient is φ = 2673216.

The previous prime is 10025627. The next prime is 10025647. The reversal of 10025640 is 4652001.

It is a happy number.

10025640 is a `hidden beast` number, since 1 + 0 + 0 + 25 + 640 = 666.

10025640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (10025647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3562 + ... + 5721.

It is an arithmetic number, because the mean of its divisors is an integer number (522225).

Almost surely, 2^10025640 is an apocalyptic number.

10025640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10025640 is an abundant number, since it is smaller than the sum of its proper divisors (23396760).

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

10025640 is a wasteful number, since it uses less digits than its factorization.

10025640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9303 (or 9293 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 10025640 is about 3166.3291048152. The cubic root of 10025640 is about 215.6274442067.

Adding to 10025640 its reverse (4652001), we get a palindrome (14677641).

The spelling of 10025640 in words is "ten million, twenty-five thousand, six hundred forty".