11771238 has 8 divisors (see below), whose sum is σ = 23542488. Its totient is φ = 3923744.

The previous prime is 11771213. The next prime is 11771257. The reversal of 11771238 is 83217711.

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

11771238 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 980931 + ... + 980942.

It is an arithmetic number, because the mean of its divisors is an integer number (2942811).

Almost surely, 2^11771238 is an apocalyptic number.

11771238 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.

11771238 is a wasteful number, since it uses less digits than its factorization.

11771238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1961878.

The product of its digits is 2352, while the sum is 30.

The square root of 11771238 is about 3430.9237823070. The cubic root of 11771238 is about 227.4786873727.

Adding to 11771238 its reverse (83217711), we get a palindrome (94988949).

It can be divided in two parts, 1177 and 1238, that added together give a triangular number (2415 = T₆₉).

The spelling of 11771238 in words is "eleven million, seven hundred seventy-one thousand, two hundred thirty-eight".