11430172 has 48 divisors (see below), whose sum is σ = 23708160. Its totient is φ = 4771008.

The previous prime is 11430169. The next prime is 11430173. The reversal of 11430172 is 27103411.

11430172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11430173) 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, 22473 + ... + 22975.

It is an arithmetic number, because the mean of its divisors is an integer number (493920).

Almost surely, 2^11430172 is an apocalyptic number.

It is an amenable number.

11430172 is an abundant number, since it is smaller than the sum of its proper divisors (12277988).

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

11430172 is a wasteful number, since it uses less digits than its factorization.

11430172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562 (or 560 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 11430172 is about 3380.8537383330. The cubic root of 11430172 is about 225.2600909989.

Adding to 11430172 its reverse (27103411), we get a palindrome (38533583).

The spelling of 11430172 in words is "eleven million, four hundred thirty thousand, one hundred seventy-two".