1345651968 has 144 divisors (see below), whose sum is σ = 3826368000. Its totient is φ = 418897920.

The previous prime is 1345651963. The next prime is 1345651969. The reversal of 1345651968 is 8691565431.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1345651963) 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, 689458 + ... + 691406.

It is an arithmetic number, because the mean of its divisors is an integer number (26572000).

Almost surely, 2^1345651968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1345651968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1913184000).

1345651968 is an abundant number, since it is smaller than the sum of its proper divisors (2480716032).

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

1345651968 is a wasteful number, since it uses less digits than its factorization.

1345651968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2028 (or 2014 counting only the distinct ones).

The product of its digits is 777600, while the sum is 48.

The square root of 1345651968 is about 36683.1292013100. The cubic root of 1345651968 is about 1104.0216336866.

The spelling of 1345651968 in words is "one billion, three hundred forty-five million, six hundred fifty-one thousand, nine hundred sixty-eight".