10243540 has 24 divisors (see below), whose sum is σ = 21611520. Its totient is φ = 4078368.

The previous prime is 10243531. The next prime is 10243543. The reversal of 10243540 is 4534201.

10243540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×10243540² = 209860223463200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10243543) 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, 3709 + ... + 5851.

It is an arithmetic number, because the mean of its divisors is an integer number (900480).

Almost surely, 2^10243540 is an apocalyptic number.

10243540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10243540 is an abundant number, since it is smaller than the sum of its proper divisors (11367980).

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

10243540 is a wasteful number, since it uses less digits than its factorization.

10243540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2391 (or 2389 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 10243540 is about 3200.5530772040. The cubic root of 10243540 is about 217.1784299820.

Adding to 10243540 its reverse (4534201), we get a palindrome (14777741).

The spelling of 10243540 in words is "ten million, two hundred forty-three thousand, five hundred forty".