10232640 has 336 divisors, whose sum is σ = 42793920. Its totient is φ = 2211840.

The previous prime is 10232603. The next prime is 10232641. The reversal of 10232640 is 4623201.

It is a happy number.

10232640 is a `hidden beast` number, since 1 + 0 + 23 + 2 + 640 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10232641) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 538551 + ... + 538569.

Almost surely, 2^10232640 is an apocalyptic number.

10232640 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 10232640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21396960).

10232640 is an abundant number, since it is smaller than the sum of its proper divisors (32561280).

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

10232640 is a wasteful number, since it uses less digits than its factorization.

10232640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70 (or 57 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 10232640 is about 3198.8497932851. The cubic root of 10232640 is about 217.1013705203.

Adding to 10232640 its reverse (4623201), we get a palindrome (14855841).

It can be divided in two parts, 1023 and 2640, that added together give a palindrome (3663).

The spelling of 10232640 in words is "ten million, two hundred thirty-two thousand, six hundred forty".