13782012 has 12 divisors (see below), whose sum is σ = 32158056. Its totient is φ = 4594000.

The previous prime is 13782007. The next prime is 13782017. The reversal of 13782012 is 21028731.

It is an interprime number because it is at equal distance from previous prime (13782007) and next prime (13782017).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13782017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 574239 + ... + 574262.

It is an arithmetic number, because the mean of its divisors is an integer number (2679838).

Almost surely, 2^13782012 is an apocalyptic number.

13782012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13782012 is an abundant number, since it is smaller than the sum of its proper divisors (18376044).

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

13782012 is a wasteful number, since it uses less digits than its factorization.

13782012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1148508 (or 1148506 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 13782012 is about 3712.4132313093. The cubic root of 13782012 is about 239.7567674636.

The spelling of 13782012 in words is "thirteen million, seven hundred eighty-two thousand, twelve".