11401749 has 8 divisors (see below), whose sum is σ = 16891520. Its totient is φ = 7601148.

The previous prime is 11401739. The next prime is 11401757. The reversal of 11401749 is 94710411.

It is not a de Polignac number, because 11401749 - 2⁵ = 11401717 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 422287 = 11401749 / (1 + 1 + 4 + 0 + 1 + 7 + 4 + 9).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11401739) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211117 + ... + 211170.

It is an arithmetic number, because the mean of its divisors is an integer number (2111440).

Almost surely, 2^11401749 is an apocalyptic number.

It is an amenable number.

11401749 is a deficient number, since it is larger than the sum of its proper divisors (5489771).

11401749 is an equidigital number, since it uses as much as digits as its factorization.

11401749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422296 (or 422290 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 11401749 is about 3376.6475978402. The cubic root of 11401749 is about 225.0732206140.

The spelling of 11401749 in words is "eleven million, four hundred one thousand, seven hundred forty-nine".