10531240 has 32 divisors (see below), whose sum is σ = 24727680. Its totient is φ = 4028992.

The previous prime is 10531237. The next prime is 10531247. The reversal of 10531240 is 4213501.

It is a super-2 number, since 2×10531240² = 221814031875200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10531247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4804 + ... + 6643.

It is an arithmetic number, because the mean of its divisors is an integer number (772740).

Almost surely, 2^10531240 is an apocalyptic number.

10531240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10531240 is an abundant number, since it is smaller than the sum of its proper divisors (14196440).

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

10531240 is a wasteful number, since it uses less digits than its factorization.

10531240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11481 (or 11477 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 10531240 is about 3245.1872056940. The cubic root of 10531240 is about 219.1929105100.

Adding to 10531240 its reverse (4213501), we get a palindrome (14744741).

The spelling of 10531240 in words is "ten million, five hundred thirty-one thousand, two hundred forty".