13919742 has 32 divisors (see below), whose sum is σ = 32563200. Its totient is φ = 4395384.

The previous prime is 13919701. The next prime is 13919743. The reversal of 13919742 is 24791931.

It is a junction number, because it is equal to n+sod(n) for n = 13919697 and 13919706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13919743) 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, 5758 + ... + 7809.

It is an arithmetic number, because the mean of its divisors is an integer number (1017600).

Almost surely, 2^13919742 is an apocalyptic number.

13919742 is an abundant number, since it is smaller than the sum of its proper divisors (18643458).

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

13919742 is a wasteful number, since it uses less digits than its factorization.

13919742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13597 (or 13591 counting only the distinct ones).

The product of its digits is 13608, while the sum is 36.

The square root of 13919742 is about 3730.9170454461. The cubic root of 13919742 is about 240.5527882937.

It can be divided in two parts, 139 and 19742, that added together give a square (19881 = 141²).

The spelling of 13919742 in words is "thirteen million, nine hundred nineteen thousand, seven hundred forty-two".