13166940 has 48 divisors (see below), whose sum is σ = 38062080. Its totient is φ = 3397440.

The previous prime is 13166939. The next prime is 13166947. The reversal of 13166940 is 4966131.

13166940 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 13166898 and 13166907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13166947) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1680 + ... + 5399.

It is an arithmetic number, because the mean of its divisors is an integer number (792960).

Almost surely, 2^13166940 is an apocalyptic number.

13166940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13166940 is an abundant number, since it is smaller than the sum of its proper divisors (24895140).

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

13166940 is a wasteful number, since it uses less digits than its factorization.

13166940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7122 (or 7120 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 13166940 is about 3628.6278398315. The cubic root of 13166940 is about 236.1356827741.

It can be divided in two parts, 1316 and 6940, that added together give a triangular number (8256 = T₁₂₈).

The spelling of 13166940 in words is "thirteen million, one hundred sixty-six thousand, nine hundred forty".