23953408 has 64 divisors (see below), whose sum is σ = 51903720. Its totient is φ = 11010048.

The previous prime is 23953387. The next prime is 23953441. The reversal of 23953408 is 80435932.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 557035 + ... + 557077.

Almost surely, 2^23953408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23953408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25951860).

23953408 is an abundant number, since it is smaller than the sum of its proper divisors (27950312).

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

23953408 is an frugal number, since it uses more digits than its factorization.

23953408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90 (or 62 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 23953408 is about 4894.2218993421. The cubic root of 23953408 is about 288.2631339974.

The spelling of 23953408 in words is "twenty-three million, nine hundred fifty-three thousand, four hundred eight".