13501040 has 40 divisors (see below), whose sum is σ = 35875680. Its totient is φ = 4628736.

The previous prime is 13501031. The next prime is 13501051. The reversal of 13501040 is 4010531.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (14).

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, 11495 + ... + 12614.

It is an arithmetic number, because the mean of its divisors is an integer number (896892).

Almost surely, 2^13501040 is an apocalyptic number.

13501040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13501040 is an abundant number, since it is smaller than the sum of its proper divisors (22374640).

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

13501040 is a wasteful number, since it uses less digits than its factorization.

13501040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24129 (or 24123 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 13501040 is about 3674.3761375232. The cubic root of 13501040 is about 238.1162720719.

Adding to 13501040 its reverse (4010531), we get a palindrome (17511571).

The spelling of 13501040 in words is "thirteen million, five hundred one thousand, forty".