1345440240240 has 40 divisors (see below), whose sum is σ = 4170864745488. Its totient is φ = 358784064000.

The previous prime is 1345440240239. The next prime is 1345440240281. The reversal of 1345440240240 is 420420445431.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2803000261 + ... + 2803000740.

Almost surely, 2^{1345440240240} is an apocalyptic number.

1345440240240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1345440240240 is an abundant number, since it is smaller than the sum of its proper divisors (2825424505248).

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

1345440240240 is a wasteful number, since it uses less digits than its factorization.

1345440240240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5606001017 (or 5606001011 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 33.

Adding to 1345440240240 its reverse (420420445431), we get a palindrome (1765860685671).

The spelling of 1345440240240 in words is "one trillion, three hundred forty-five billion, four hundred forty million, two hundred forty thousand, two hundred forty".