23554240436 has 12 divisors (see below), whose sum is σ = 41268250212. Its totient is φ = 11763311808.

The previous prime is 23554240379. The next prime is 23554240439. The reversal of 23554240436 is 63404245532.

It can be written as a sum of positive squares in 2 ways, for example, as 9841830436 + 13712410000 = 99206^2 + 117100^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 23554240436.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23554240439) 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, 3448265 + ... + 3455088.

It is an arithmetic number, because the mean of its divisors is an integer number (3439020851).

Almost surely, 2^23554240436 is an apocalyptic number.

It is an amenable number.

23554240436 is a deficient number, since it is larger than the sum of its proper divisors (17714009776).

23554240436 is a wasteful number, since it uses less digits than its factorization.

23554240436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6904210 (or 6904208 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 38.

Adding to 23554240436 its reverse (63404245532), we get a palindrome (86958485968).

The spelling of 23554240436 in words is "twenty-three billion, five hundred fifty-four million, two hundred forty thousand, four hundred thirty-six".