10403540 has 24 divisors (see below), whose sum is σ = 24968832. Its totient is φ = 3566880.

The previous prime is 10403539. The next prime is 10403557. The reversal of 10403540 is 4530401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37016 + ... + 37295.

It is an arithmetic number, because the mean of its divisors is an integer number (1040368).

Almost surely, 2^10403540 is an apocalyptic number.

10403540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10403540 is an abundant number, since it is smaller than the sum of its proper divisors (14565292).

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

10403540 is a wasteful number, since it uses less digits than its factorization.

10403540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74327 (or 74325 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 10403540 is about 3225.4519063226. The cubic root of 10403540 is about 218.3033400259.

Adding to 10403540 its reverse (4530401), we get a palindrome (14933941).

The spelling of 10403540 in words is "ten million, four hundred three thousand, five hundred forty".