11381764 has 12 divisors (see below), whose sum is σ = 20404188. Its totient is φ = 5552000.

The previous prime is 11381761. The next prime is 11381813. The reversal of 11381764 is 46718311.

It can be written as a sum of positive squares in 2 ways, for example, as 3496900 + 7884864 = 1870^2 + 2808^2 .

It is a super-3 number, since 3×11381764³ (a number of 22 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (11381761) 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, 34537 + ... + 34864.

It is an arithmetic number, because the mean of its divisors is an integer number (1700349).

Almost surely, 2^11381764 is an apocalyptic number.

It is an amenable number.

11381764 is a deficient number, since it is larger than the sum of its proper divisors (9022424).

11381764 is a wasteful number, since it uses less digits than its factorization.

11381764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69446 (or 69444 counting only the distinct ones).

The product of its digits is 4032, while the sum is 31.

The square root of 11381764 is about 3373.6870038579. The cubic root of 11381764 is about 224.9416408315.

The spelling of 11381764 in words is "eleven million, three hundred eighty-one thousand, seven hundred sixty-four".