1345578 has 24 divisors (see below), whose sum is σ = 2916288. Its totient is φ = 413712.

The previous prime is 1345577. The next prime is 1345583. The reversal of 1345578 is 8755431.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (1345577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 351 + ... + 1677.

It is an arithmetic number, because the mean of its divisors is an integer number (121512).

2^1345578 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1345578, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1458144).

1345578 is an abundant number, since it is smaller than the sum of its proper divisors (1570710).

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

1345578 is a wasteful number, since it uses less digits than its factorization.

1345578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1358 (or 1345 counting only the distinct ones).

The product of its digits is 16800, while the sum is 33.

The square root of 1345578 is about 1159.9905172026. The cubic root of 1345578 is about 110.4001404640.

The spelling of 1345578 in words is "one million, three hundred forty-five thousand, five hundred seventy-eight".