11439401 has 4 divisors (see below), whose sum is σ = 11748612. Its totient is φ = 11130192.

The previous prime is 11439383. The next prime is 11439409. The reversal of 11439401 is 10493411.

11439401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10627600 + 811801 = 3260^2 + 901^2 .

It is a de Polignac number, because none of the positive numbers 2^k-11439401 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11439409) 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, 154550 + ... + 154623.

It is an arithmetic number, because the mean of its divisors is an integer number (2937153).

Almost surely, 2^11439401 is an apocalyptic number.

It is an amenable number.

11439401 is a deficient number, since it is larger than the sum of its proper divisors (309211).

11439401 is an equidigital number, since it uses as much as digits as its factorization.

11439401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309210.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 11439401 is about 3382.2183548671. The cubic root of 11439401 is about 225.3207015218.

The spelling of 11439401 in words is "eleven million, four hundred thirty-nine thousand, four hundred one".