23240033440 has 48 divisors (see below), whose sum is σ = 59128013448. Its totient is φ = 8580934656.

The previous prime is 23240033423. The next prime is 23240033519. The reversal of 23240033440 is 4433004232.

It can be written as a sum of positive squares in 4 ways, for example, as 14506757136 + 8733276304 = 120444^2 + 93452^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5584467 + ... + 5588626.

Almost surely, 2^23240033440 is an apocalyptic number.

23240033440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23240033440 is an abundant number, since it is smaller than the sum of its proper divisors (35887980008).

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

23240033440 is a wasteful number, since it uses less digits than its factorization.

23240033440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11173121 (or 11173113 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 25.

Adding to 23240033440 its reverse (4433004232), we get a palindrome (27673037672).

The spelling of 23240033440 in words is "twenty-three billion, two hundred forty million, thirty-three thousand, four hundred forty".