13942740 has 96 divisors (see below), whose sum is σ = 45239040. Its totient is φ = 3142656.

The previous prime is 13942727. The next prime is 13942741. The reversal of 13942740 is 4724931.

It is a happy number.

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 = 13942698 and 13942707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13942741) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37194 + ... + 37566.

It is an arithmetic number, because the mean of its divisors is an integer number (471240).

Almost surely, 2^13942740 is an apocalyptic number.

13942740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13942740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22619520).

13942740 is an abundant number, since it is smaller than the sum of its proper divisors (31296300).

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

13942740 is a wasteful number, since it uses less digits than its factorization.

13942740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481 (or 479 counting only the distinct ones).

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

The square root of 13942740 is about 3733.9978575248. The cubic root of 13942740 is about 240.6851947004.

The spelling of 13942740 in words is "thirteen million, nine hundred forty-two thousand, seven hundred forty".