1345493646 has 64 divisors (see below), whose sum is σ = 3486912000. Its totient is φ = 384421464.

The previous prime is 1345493621. The next prime is 1345493659. The reversal of 1345493646 is 6463945431.

1345493646 is a `hidden beast` number, since 1 + 34 + 549 + 36 + 46 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17800 + ... + 54843.

It is an arithmetic number, because the mean of its divisors is an integer number (54483000).

Almost surely, 2^1345493646 is an apocalyptic number.

1345493646 is an abundant number, since it is smaller than the sum of its proper divisors (2141418354).

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

1345493646 is an equidigital number, since it uses as much as digits as its factorization.

1345493646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72675 (or 72655 counting only the distinct ones).

The product of its digits is 933120, while the sum is 45.

The square root of 1345493646 is about 36680.9711703493. The cubic root of 1345493646 is about 1103.9783342865.

The spelling of 1345493646 in words is "one billion, three hundred forty-five million, four hundred ninety-three thousand, six hundred forty-six".