11749542 has 16 divisors (see below), whose sum is σ = 26856192. Its totient is φ = 3357000.

The previous prime is 11749541. The next prime is 11749547. The reversal of 11749542 is 24594711.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11749541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139834 + ... + 139917.

It is an arithmetic number, because the mean of its divisors is an integer number (1678512).

Almost surely, 2^11749542 is an apocalyptic number.

11749542 is an abundant number, since it is smaller than the sum of its proper divisors (15106650).

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

11749542 is a wasteful number, since it uses less digits than its factorization.

11749542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279763.

The product of its digits is 10080, while the sum is 33.

The square root of 11749542 is about 3427.7604933834. The cubic root of 11749542 is about 227.3388433194.

The spelling of 11749542 in words is "eleven million, seven hundred forty-nine thousand, five hundred forty-two".