232540121223440 has 40 divisors (see below), whose sum is σ = 541230336516888. Its totient is φ = 92917200373760.

The previous prime is 232540121223433. The next prime is 232540121223467. The reversal of 232540121223440 is 44322121045232.

232540121223440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 3727787839504 + 228812333383936 = 1930748^2 + 15126544^2 .

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

It is a super-2 number, since 2×232540121223440² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 232540121223440.

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, 1544426057 + ... + 1544576616.

Almost surely, 2^{232540121223440} is an apocalyptic number.

232540121223440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

232540121223440 is an abundant number, since it is smaller than the sum of its proper divisors (308690215293448).

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

232540121223440 is a wasteful number, since it uses less digits than its factorization.

232540121223440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3089003627 (or 3089003621 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 35.

Adding to 232540121223440 its reverse (44322121045232), we get a palindrome (276862242268672).

The spelling of 232540121223440 in words is "two hundred thirty-two trillion, five hundred forty billion, one hundred twenty-one million, two hundred twenty-three thousand, four hundred forty".