23003240040 has 96 divisors (see below), whose sum is σ = 81556956000. Its totient is φ = 5576542080.

The previous prime is 23003240009. The next prime is 23003240069. The reversal of 23003240040 is 4004230032.

23003240040 is a `hidden beast` number, since 2 + 300 + 324 + 0 + 0 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 23003239995 and 23003240022.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2900490 + ... + 2908409.

It is an arithmetic number, because the mean of its divisors is an integer number (849551625).

Almost surely, 2^23003240040 is an apocalyptic number.

23003240040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23003240040 is an abundant number, since it is smaller than the sum of its proper divisors (58553715960).

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

23003240040 is a wasteful number, since it uses less digits than its factorization.

23003240040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5808927 (or 5808920 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

Adding to 23003240040 its reverse (4004230032), we get a palindrome (27007470072).

It can be divided in two parts, 230032 and 40040, that added together give a palindrome (270072).

The spelling of 23003240040 in words is "twenty-three billion, three million, two hundred forty thousand, forty".