23503272 has 64 divisors (see below), whose sum is σ = 64229760. Its totient is φ = 7123200.

The previous prime is 23503229. The next prime is 23503273. The reversal of 23503272 is 27230532.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23503273) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 21622 + ... + 22682.

It is an arithmetic number, because the mean of its divisors is an integer number (1003590).

Almost surely, 2^23503272 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 23503272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32114880).

23503272 is an abundant number, since it is smaller than the sum of its proper divisors (40726488).

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

23503272 is a wasteful number, since it uses less digits than its factorization.

23503272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1154 (or 1150 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 24.

The square root of 23503272 is about 4848.0173267017. The cubic root of 23503272 is about 286.4460089105.

The spelling of 23503272 in words is "twenty-three million, five hundred three thousand, two hundred seventy-two".