13780632 has 32 divisors (see below), whose sum is σ = 35020080. Its totient is φ = 4517760.

The previous prime is 13780631. The next prime is 13780651. The reversal of 13780632 is 23608731.

It is a self number, because there is not a number n which added to its sum of digits gives 13780632.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13780631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3243 + ... + 6170.

Almost surely, 2^13780632 is an apocalyptic number.

13780632 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13780632 is an abundant number, since it is smaller than the sum of its proper divisors (21239448).

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

13780632 is a wasteful number, since it uses less digits than its factorization.

13780632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9483 (or 9479 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 13780632 is about 3712.2273637265. The cubic root of 13780632 is about 239.7487648733.

The spelling of 13780632 in words is "thirteen million, seven hundred eighty thousand, six hundred thirty-two".