10023640 has 96 divisors (see below), whose sum is σ = 26334000. Its totient is φ = 3421440.

The previous prime is 10023631. The next prime is 10023641. The reversal of 10023640 is 4632001.

10023640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10023641) 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, 91906 + ... + 92014.

Almost surely, 2^10023640 is an apocalyptic number.

10023640 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 10023640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13167000).

10023640 is an abundant number, since it is smaller than the sum of its proper divisors (16310360).

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

10023640 is a wasteful number, since it uses less digits than its factorization.

10023640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161 (or 146 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 10023640 is about 3166.0132659229. The cubic root of 10023640 is about 215.6131048539.

Adding to 10023640 its reverse (4632001), we get a palindrome (14655641).

The spelling of 10023640 in words is "ten million, twenty-three thousand, six hundred forty".