1345405432440 has 128 divisors (see below), whose sum is σ = 4166903347200. Its totient is φ = 347160860160.

The previous prime is 1345405432429. The next prime is 1345405432451. The reversal of 1345405432440 is 442345045431.

It is an interprime number because it is at equal distance from previous prime (1345405432429) and next prime (1345405432451).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44397934 + ... + 44428226.

It is an arithmetic number, because the mean of its divisors is an integer number (32553932400).

Almost surely, 2^{1345405432440} is an apocalyptic number.

1345405432440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1345405432440 is an abundant number, since it is smaller than the sum of its proper divisors (2821497914760).

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

1345405432440 is a wasteful number, since it uses less digits than its factorization.

1345405432440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42277 (or 42273 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 39.

The spelling of 1345405432440 in words is "one trillion, three hundred forty-five billion, four hundred five million, four hundred thirty-two thousand, four hundred forty".