11091642 has 8 divisors (see below), whose sum is σ = 22183296. Its totient is φ = 3697212.

The previous prime is 11091631. The next prime is 11091643. The reversal of 11091642 is 24619011.

It is a sphenic number, since it is the product of 3 distinct primes.

11091642 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (11091643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 924298 + ... + 924309.

It is an arithmetic number, because the mean of its divisors is an integer number (2772912).

Almost surely, 2^11091642 is an apocalyptic number.

11091642 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

11091642 is a wasteful number, since it uses less digits than its factorization.

11091642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1848612.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 11091642 is about 3330.4116862634. The cubic root of 11091642 is about 223.0139078512.

The spelling of 11091642 in words is "eleven million, ninety-one thousand, six hundred forty-two".