11742542 has 16 divisors (see below), whose sum is σ = 20675040. Its totient is φ = 4896288.

The previous prime is 11742517. The next prime is 11742553. The reversal of 11742542 is 24524711.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10817 + ... + 11852.

It is an arithmetic number, because the mean of its divisors is an integer number (1292190).

Almost surely, 2^11742542 is an apocalyptic number.

11742542 is a deficient number, since it is larger than the sum of its proper divisors (8932498).

11742542 is a wasteful number, since it uses less digits than its factorization.

11742542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22715.

The product of its digits is 2240, while the sum is 26.

The square root of 11742542 is about 3426.7392664164. The cubic root of 11742542 is about 227.2936872887.

The spelling of 11742542 in words is "eleven million, seven hundred forty-two thousand, five hundred forty-two".