23481040 has 40 divisors (see below), whose sum is σ = 59558688. Its totient is φ = 8538240.

The previous prime is 23481037. The next prime is 23481047. The reversal of 23481040 is 4018432.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23481047) 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, 12462 + ... + 14221.

Almost surely, 2^23481040 is an apocalyptic number.

23481040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23481040 is an abundant number, since it is smaller than the sum of its proper divisors (36077648).

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

23481040 is a wasteful number, since it uses less digits than its factorization.

23481040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26707 (or 26701 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 23481040 is about 4845.7238881306. The cubic root of 23481040 is about 286.3556629555.

Adding to 23481040 its reverse (4018432), we get a palindrome (27499472).

The spelling of 23481040 in words is "twenty-three million, four hundred eighty-one thousand, forty".