23438416 has 10 divisors (see below), whose sum is σ = 45411962. Its totient is φ = 11719200.

The previous prime is 23438413. The next prime is 23438423. The reversal of 23438416 is 61483432.

It can be written as a sum of positive squares in only one way, i.e., 23078416 + 360000 = 4804^2 + 600^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23438411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 732435 + ... + 732466.

Almost surely, 2^23438416 is an apocalyptic number.

It is an amenable number.

23438416 is a deficient number, since it is larger than the sum of its proper divisors (21973546).

23438416 is a wasteful number, since it uses less digits than its factorization.

23438416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1464909 (or 1464903 counting only the distinct ones).

The product of its digits is 13824, while the sum is 31.

The square root of 23438416 is about 4841.3237859081. The cubic root of 23438416 is about 286.1822887969.

The spelling of 23438416 in words is "twenty-three million, four hundred thirty-eight thousand, four hundred sixteen".