13940542 has 16 divisors (see below), whose sum is σ = 26070912. Its totient is φ = 5431320.

The previous prime is 13940539. The next prime is 13940543. The reversal of 13940542 is 24504931.

It is a super-2 number, since 2×13940542² = 388677422507528, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13940542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13940543) 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, 45108 + ... + 45415.

It is an arithmetic number, because the mean of its divisors is an integer number (1629432).

Almost surely, 2^13940542 is an apocalyptic number.

13940542 is a deficient number, since it is larger than the sum of its proper divisors (12130370).

13940542 is a wasteful number, since it uses less digits than its factorization.

13940542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90543.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 13940542 is about 3733.7035233130. The cubic root of 13940542 is about 240.6725464486.

The spelling of 13940542 in words is "thirteen million, nine hundred forty thousand, five hundred forty-two".