23407144 has 8 divisors (see below), whose sum is σ = 43888410. Its totient is φ = 11703568.

The previous prime is 23407133. The next prime is 23407151. The reversal of 23407144 is 44170432.

It can be written as a sum of positive squares in only one way, i.e., 23406244 + 900 = 4838^2 + 30^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1462939 + ... + 1462954.

Almost surely, 2^23407144 is an apocalyptic number.

It is an amenable number.

23407144 is a deficient number, since it is larger than the sum of its proper divisors (20481266).

23407144 is a wasteful number, since it uses less digits than its factorization.

23407144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2925899 (or 2925895 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 23407144 is about 4838.0930127479. The cubic root of 23407144 is about 286.0549554525.

Adding to 23407144 its reverse (44170432), we get a palindrome (67577576).

The spelling of 23407144 in words is "twenty-three million, four hundred seven thousand, one hundred forty-four".