13040988 has 12 divisors (see below), whose sum is σ = 30429000. Its totient is φ = 4346992.

The previous prime is 13040959. The next prime is 13041001. The reversal of 13040988 is 88904031.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×13040988² = 340134736032288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 543363 + ... + 543386.

It is an arithmetic number, because the mean of its divisors is an integer number (2535750).

Almost surely, 2^13040988 is an apocalyptic number.

It is an amenable number.

13040988 is an abundant number, since it is smaller than the sum of its proper divisors (17388012).

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

13040988 is a wasteful number, since it uses less digits than its factorization.

13040988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1086756 (or 1086754 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 13040988 is about 3611.2308151100. The cubic root of 13040988 is about 235.3803287567.

It can be divided in two parts, 13040 and 988, that added together give a triangular number (14028 = T₁₆₇).

The spelling of 13040988 in words is "thirteen million, forty thousand, nine hundred eighty-eight".