11423172 has 24 divisors (see below), whose sum is σ = 26725216. Its totient is φ = 3797568.

The previous prime is 11423149. The next prime is 11423173. The reversal of 11423172 is 27132411.

11423172 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (11423173) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4443 + ... + 6525.

Almost surely, 2^11423172 is an apocalyptic number.

11423172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11423172 is an abundant number, since it is smaller than the sum of its proper divisors (15302044).

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

11423172 is a wasteful number, since it uses less digits than its factorization.

11423172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2547 (or 2545 counting only the distinct ones).

The product of its digits is 336, while the sum is 21.

The square root of 11423172 is about 3379.8183383135. The cubic root of 11423172 is about 225.2140974468.

Adding to 11423172 its reverse (27132411), we get a palindrome (38555583).

The spelling of 11423172 in words is "eleven million, four hundred twenty-three thousand, one hundred seventy-two".