1345297800 has 384 divisors, whose sum is σ = 5346800640. Its totient is φ = 271641600.

The previous prime is 1345297799. The next prime is 1345297813. The reversal of 1345297800 is 87925431.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1709007 + ... + 1709793.

It is an arithmetic number, because the mean of its divisors is an integer number (13923960).

Almost surely, 2^1345297800 is an apocalyptic number.

1345297800 is a gapful number since it is divisible by the number (10) 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 1345297800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2673400320).

1345297800 is an abundant number, since it is smaller than the sum of its proper divisors (4001502840).

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

1345297800 is a wasteful number, since it uses less digits than its factorization.

1345297800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861 (or 852 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 1345297800 is about 36678.3014873917. The cubic root of 1345297800 is about 1103.9247677678.

The spelling of 1345297800 in words is "one billion, three hundred forty-five million, two hundred ninety-seven thousand, eight hundred".