13784742 has 20 divisors (see below), whose sum is σ = 30888396. Its totient is φ = 4594860.

The previous prime is 13784713. The next prime is 13784761. The reversal of 13784742 is 24748731.

It is a happy number.

13784742 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×13784742² = 380038224013128, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13784697 and 13784706.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 42384 + ... + 42707.

Almost surely, 2^13784742 is an apocalyptic number.

13784742 is an abundant number, since it is smaller than the sum of its proper divisors (17103654).

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

13784742 is an equidigital number, since it uses as much as digits as its factorization.

13784742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85105 (or 85096 counting only the distinct ones).

The product of its digits is 37632, while the sum is 36.

The square root of 13784742 is about 3712.7808984641. The cubic root of 13784742 is about 239.7725971011.

The spelling of 13784742 in words is "thirteen million, seven hundred eighty-four thousand, seven hundred forty-two".