1345580544 has 320 divisors, whose sum is σ = 4625989632. Its totient is φ = 337305600.

The previous prime is 1345580543. The next prime is 1345580563. The reversal of 1345580544 is 4450855431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1345580543) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3666249 + ... + 3666615.

Almost surely, 2^1345580544 is an apocalyptic number.

1345580544 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1345580544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2312994816).

1345580544 is an abundant number, since it is smaller than the sum of its proper divisors (3280409088).

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

1345580544 is a wasteful number, since it uses less digits than its factorization.

1345580544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437 (or 421 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 39.

The square root of 1345580544 is about 36682.1556618474. The cubic root of 1345580544 is about 1104.0021003951.

The spelling of 1345580544 in words is "one billion, three hundred forty-five million, five hundred eighty thousand, five hundred forty-four".