11381430 has 32 divisors (see below), whose sum is σ = 27694944. Its totient is φ = 2992896.

The previous prime is 11381423. The next prime is 11381431. The reversal of 11381430 is 3418311.

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 11381397 and 11381406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11381431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 409 + ... + 4788.

It is an arithmetic number, because the mean of its divisors is an integer number (865467).

Almost surely, 2^11381430 is an apocalyptic number.

11381430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11381430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13847472).

11381430 is an abundant number, since it is smaller than the sum of its proper divisors (16313514).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11381430 is a wasteful number, since it uses less digits than its factorization.

11381430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5280.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 11381430 is about 3373.6375027557. The cubic root of 11381430 is about 224.9394404918.

Adding to 11381430 its reverse (3418311), we get a palindrome (14799741).

It can be divided in two parts, 11381 and 430, that added together give a palindrome (11811).

The spelling of 11381430 in words is "eleven million, three hundred eighty-one thousand, four hundred thirty".