11522742 has 64 divisors (see below), whose sum is σ = 29376000. Its totient is φ = 2987040.

The previous prime is 11522729. The next prime is 11522743. The reversal of 11522742 is 24722511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11522743) 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, 22384 + ... + 22892.

It is an arithmetic number, because the mean of its divisors is an integer number (459000).

Almost surely, 2^11522742 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11522742, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14688000).

11522742 is an abundant number, since it is smaller than the sum of its proper divisors (17853258).

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

11522742 is a wasteful number, since it uses less digits than its factorization.

11522742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546 (or 532 counting only the distinct ones).

The product of its digits is 1120, while the sum is 24.

The square root of 11522742 is about 3394.5164604108. The cubic root of 11522742 is about 225.8665644043.

It can be divided in two parts, 11 and 522742, that added together give a triangular number (522753 = T₁₀₂₂).

The spelling of 11522742 in words is "eleven million, five hundred twenty-two thousand, seven hundred forty-two".