23067520 has 128 divisors (see below), whose sum is σ = 66585600. Its totient is φ = 7464960.

The previous prime is 23067509. The next prime is 23067523. The reversal of 23067520 is 2576032.

23067520 = 445² + 446² + ... + 539².

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×23067520² = 1064220957900800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23067523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84985 + ... + 85255.

It is an arithmetic number, because the mean of its divisors is an integer number (520200).

Almost surely, 2^23067520 is an apocalyptic number.

23067520 is a gapful number since it is divisible by the number (20) 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 23067520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33292800).

23067520 is an abundant number, since it is smaller than the sum of its proper divisors (43518080).

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

23067520 is a wasteful number, since it uses less digits than its factorization.

23067520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316 (or 304 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 23067520 is about 4802.8658111590. The cubic root of 23067520 is about 284.6647129200.

The spelling of 23067520 in words is "twenty-three million, sixty-seven thousand, five hundred twenty".