11840749 has 4 divisors (see below), whose sum is σ = 11860864. Its totient is φ = 11820636.

The previous prime is 11840737. The next prime is 11840753. The reversal of 11840749 is 94704811.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11840749 - 2²¹ = 9743597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11841749) 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, 9147 + ... + 10360.

It is an arithmetic number, because the mean of its divisors is an integer number (2965216).

Almost surely, 2^11840749 is an apocalyptic number.

It is an amenable number.

11840749 is a deficient number, since it is larger than the sum of its proper divisors (20115).

11840749 is an equidigital number, since it uses as much as digits as its factorization.

11840749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20114.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 11840749 is about 3441.0389419476. The cubic root of 11840749 is about 227.9255746104.

The spelling of 11840749 in words is "eleven million, eight hundred forty thousand, seven hundred forty-nine".