23435040 has 48 divisors (see below), whose sum is σ = 73821888. Its totient is φ = 6249216.

The previous prime is 23435021. The next prime is 23435047. The reversal of 23435040 is 4053432.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 23434998 and 23435016.

It is not an unprimeable number, because it can be changed into a prime (23435047) 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 7 ways as a sum of consecutive naturals, for example, 23932 + ... + 24891.

It is an arithmetic number, because the mean of its divisors is an integer number (1537956).

Almost surely, 2^23435040 is an apocalyptic number.

23435040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23435040 is an abundant number, since it is smaller than the sum of its proper divisors (50386848).

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

23435040 is a wasteful number, since it uses less digits than its factorization.

23435040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48841 (or 48833 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 23435040 is about 4840.9751083847. The cubic root of 23435040 is about 286.1685478541.

Adding to 23435040 its reverse (4053432), we get a palindrome (27488472).

The spelling of 23435040 in words is "twenty-three million, four hundred thirty-five thousand, forty".