1345757712 has 80 divisors (see below), whose sum is σ = 3799965120. Its totient is φ = 407886336.

The previous prime is 1345757711. The next prime is 1345757717. The reversal of 1345757712 is 2177575431.

It is a super-2 number, since 2×1345757712² = 3622127638814949888, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1345757711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25714 + ... + 57902.

It is an arithmetic number, because the mean of its divisors is an integer number (47499564).

Almost surely, 2^1345757712 is an apocalyptic number.

1345757712 is a gapful number since it is divisible by the number (12) 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 1345757712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1899982560).

1345757712 is an abundant number, since it is smaller than the sum of its proper divisors (2454207408).

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

1345757712 is a wasteful number, since it uses less digits than its factorization.

1345757712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32280 (or 32274 counting only the distinct ones).

The product of its digits is 205800, while the sum is 42.

The square root of 1345757712 is about 36684.5704895123. The cubic root of 1345757712 is about 1104.0505516655.

The spelling of 1345757712 in words is "one billion, three hundred forty-five million, seven hundred fifty-seven thousand, seven hundred twelve".