23920224 has 48 divisors (see below), whose sum is σ = 66488688. Its totient is φ = 7503872.

The previous prime is 23920217. The next prime is 23920229. The reversal of 23920224 is 42202932.

23920224 = T₂₅₅ + T₂₅₆ + ... + T₅₄₂.

It is a tau number, because it is divible by the number of its divisors (48).

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

It is a junction number, because it is equal to n+sod(n) for n = 23920194 and 23920203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23920229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5697 + ... + 8960.

It is an arithmetic number, because the mean of its divisors is an integer number (1385181).

Almost surely, 2^23920224 is an apocalyptic number.

23920224 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

23920224 is an abundant number, since it is smaller than the sum of its proper divisors (42568464).

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

23920224 is a wasteful number, since it uses less digits than its factorization.

23920224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14687 (or 14679 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 23920224 is about 4890.8306043043. The cubic root of 23920224 is about 288.1299567817.

The spelling of 23920224 in words is "twenty-three million, nine hundred twenty thousand, two hundred twenty-four".