1345331288 has 64 divisors (see below), whose sum is σ = 2933521920. Its totient is φ = 566496000.

The previous prime is 1345331269. The next prime is 1345331293. The reversal of 1345331288 is 8821335431.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2238188 + ... + 2238788.

It is an arithmetic number, because the mean of its divisors is an integer number (45836280).

Almost surely, 2^1345331288 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 1345331288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1466760960).

1345331288 is an abundant number, since it is smaller than the sum of its proper divisors (1588190632).

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

1345331288 is a wasteful number, since it uses less digits than its factorization.

1345331288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1248 (or 1244 counting only the distinct ones).

The product of its digits is 69120, while the sum is 38.

The square root of 1345331288 is about 36678.7579942397. The cubic root of 1345331288 is about 1103.9339275552.

The spelling of 1345331288 in words is "one billion, three hundred forty-five million, three hundred thirty-one thousand, two hundred eighty-eight".