10403040 has 48 divisors (see below), whose sum is σ = 32771088. Its totient is φ = 2774016.

The previous prime is 10403039. The next prime is 10403077. The reversal of 10403040 is 4030401.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10357 + ... + 11316.

It is an arithmetic number, because the mean of its divisors is an integer number (682731).

Almost surely, 2^10403040 is an apocalyptic number.

10403040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10403040 is an abundant number, since it is smaller than the sum of its proper divisors (22368048).

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

10403040 is a wasteful number, since it uses less digits than its factorization.

10403040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21691 (or 21683 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 10403040 is about 3225.3743968724. The cubic root of 10403040 is about 218.2998427093.

Adding to 10403040 its reverse (4030401), we get a palindrome (14433441).

The spelling of 10403040 in words is "ten million, four hundred three thousand, forty".