23503928 has 48 divisors (see below), whose sum is σ = 54295920. Its totient is φ = 9477888.

The previous prime is 23503913. The next prime is 23503937. The reversal of 23503928 is 82930532.

It is a junction number, because it is equal to n+sod(n) for n = 23503894 and 23503903.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4901 + ... + 8427.

It is an arithmetic number, because the mean of its divisors is an integer number (1131165).

Almost surely, 2^23503928 is an apocalyptic number.

23503928 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23503928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27147960).

23503928 is an abundant number, since it is smaller than the sum of its proper divisors (30791992).

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

23503928 is a wasteful number, since it uses less digits than its factorization.

23503928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3564 (or 3553 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 23503928 is about 4848.0849827535. The cubic root of 23503928 is about 286.4486738846.

The spelling of 23503928 in words is "twenty-three million, five hundred three thousand, nine hundred twenty-eight".