23035840 has 28 divisors (see below), whose sum is σ = 54854856. Its totient is φ = 9214208.

The previous prime is 23035823. The next prime is 23035843. The reversal of 23035840 is 4853032.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23035843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35674 + ... + 36313.

It is an arithmetic number, because the mean of its divisors is an integer number (1959102).

Almost surely, 2^23035840 is an apocalyptic number.

23035840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23035840 is an abundant number, since it is smaller than the sum of its proper divisors (31819016).

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

23035840 is an equidigital number, since it uses as much as digits as its factorization.

23035840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72004 (or 71994 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 23035840 is about 4799.5666471047. The cubic root of 23035840 is about 284.5343375458.

Adding to 23035840 its reverse (4853032), we get a palindrome (27888872).

The spelling of 23035840 in words is "twenty-three million, thirty-five thousand, eight hundred forty".