1232340355440 has 120 divisors (see below), whose sum is σ = 4239551495088. Its totient is φ = 320608865280.

The previous prime is 1232340355417. The next prime is 1232340355517. The reversal of 1232340355440 is 445530432321.

1232340355440 is a `hidden beast` number, since 1 + 2 + 3 + 23 + 40 + 3 + 554 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1232340355395 and 1232340355404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20843454 + ... + 20902493.

Almost surely, 2^{1232340355440} is an apocalyptic number.

1232340355440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1232340355440 is an abundant number, since it is smaller than the sum of its proper divisors (3007211139648).

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

1232340355440 is a wasteful number, since it uses less digits than its factorization.

1232340355440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41746007 (or 41745998 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 36.

Adding to 1232340355440 its reverse (445530432321), we get a palindrome (1677870787761).

The spelling of 1232340355440 in words is "one trillion, two hundred thirty-two billion, three hundred forty million, three hundred fifty-five thousand, four hundred forty".