1345830980 has 24 divisors (see below), whose sum is σ = 3043649112. Its totient is φ = 496922112.

The previous prime is 1345830979. The next prime is 1345830991. The reversal of 1345830980 is 890385431.

It can be written as a sum of positive squares in 4 ways, for example, as 54434884 + 1291396096 = 7378^2 + 35936^2 .

It is a super-2 number, since 2×1345830980² = 3622522053455520800, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2587877 + ... + 2588396.

It is an arithmetic number, because the mean of its divisors is an integer number (126818713).

Almost surely, 2^1345830980 is an apocalyptic number.

1345830980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1345830980 is an abundant number, since it is smaller than the sum of its proper divisors (1697818132).

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

1345830980 is a wasteful number, since it uses less digits than its factorization.

1345830980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5176295 (or 5176293 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 1345830980 is about 36685.5690973985. The cubic root of 1345830980 is about 1104.0705874929.

The spelling of 1345830980 in words is "one billion, three hundred forty-five million, eight hundred thirty thousand, nine hundred eighty".