23978384 has 10 divisors (see below), whose sum is σ = 46458150. Its totient is φ = 11989184.

The previous prime is 23978377. The next prime is 23978387. The reversal of 23978384 is 48387932.

It can be written as a sum of positive squares in only one way, i.e., 21418384 + 2560000 = 4628^2 + 1600^2 .

It is not an unprimeable number, because it can be changed into a prime (23978387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 749309 + ... + 749340.

It is an arithmetic number, because the mean of its divisors is an integer number (4645815).

Almost surely, 2^23978384 is an apocalyptic number.

It is an amenable number.

23978384 is a deficient number, since it is larger than the sum of its proper divisors (22479766).

23978384 is a wasteful number, since it uses less digits than its factorization.

23978384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1498657 (or 1498651 counting only the distinct ones).

The product of its digits is 290304, while the sum is 44.

The square root of 23978384 is about 4896.7728148241. The cubic root of 23978384 is about 288.3632889753.

The spelling of 23978384 in words is "twenty-three million, nine hundred seventy-eight thousand, three hundred eighty-four".