23035520 has 32 divisors (see below), whose sum is σ = 55070820. Its totient is φ = 9213952.

The previous prime is 23035517. The next prime is 23035553. The reversal of 23035520 is 2553032.

It can be written as a sum of positive squares in 2 ways, for example, as 22505536 + 529984 = 4744^2 + 728^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 23035492 and 23035501.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17357 + ... + 18636.

Almost surely, 2^23035520 is an apocalyptic number.

23035520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23035520 is an abundant number, since it is smaller than the sum of its proper divisors (32035300).

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

23035520 is an equidigital number, since it uses as much as digits as its factorization.

23035520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36012 (or 36000 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 20.

The square root of 23035520 is about 4799.5333106459. The cubic root of 23035520 is about 284.5330200132.

Adding to 23035520 its reverse (2553032), we get a palindrome (25588552).

The spelling of 23035520 in words is "twenty-three million, thirty-five thousand, five hundred twenty".