23031424 has 32 divisors (see below), whose sum is σ = 49415940. Its totient is φ = 10629120.

The previous prime is 23031409. The next prime is 23031461. The reversal of 23031424 is 42413032.

It can be written as a sum of positive squares in 2 ways, for example, as 21160000 + 1871424 = 4600^2 + 1368^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5257 + ... + 8584.

Almost surely, 2^23031424 is an apocalyptic number.

It is an amenable number.

23031424 is an abundant number, since it is smaller than the sum of its proper divisors (26384516).

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

23031424 is a wasteful number, since it uses less digits than its factorization.

23031424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13868 (or 13856 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 23031424 is about 4799.1065835216. The cubic root of 23031424 is about 284.5161545183.

Adding to 23031424 its reverse (42413032), we get a palindrome (65444456).

The spelling of 23031424 in words is "twenty-three million, thirty-one thousand, four hundred twenty-four".