1345643046 has 24 divisors (see below), whose sum is σ = 3180611304. Its totient is φ = 407770560.

The previous prime is 1345643017. The next prime is 1345643093. The reversal of 1345643046 is 6403465431.

1345643046 is a `hidden beast` number, since 1 + 3 + 4 + 5 + 643 + 0 + 4 + 6 = 666.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1345643046.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3397891 + ... + 3398286.

It is an arithmetic number, because the mean of its divisors is an integer number (132525471).

Almost surely, 2^1345643046 is an apocalyptic number.

1345643046 is an abundant number, since it is smaller than the sum of its proper divisors (1834968258).

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

1345643046 is a wasteful number, since it uses less digits than its factorization.

1345643046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6796196 (or 6796193 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

The square root of 1345643046 is about 36683.0075920718. The cubic root of 1345643046 is about 1104.0191937038.

The spelling of 1345643046 in words is "one billion, three hundred forty-five million, six hundred forty-three thousand, forty-six".