1346006646 has 64 divisors (see below), whose sum is σ = 3110266560. Its totient is φ = 436490208.

The previous prime is 1346006611. The next prime is 1346006647. The reversal of 1346006646 is 6466006431.

1346006646 is a `hidden beast` number, since 1 + 3 + 4 + 6 + 0 + 0 + 6 + 646 = 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 1346006646.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1346006647) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 157680 + ... + 165996.

It is an arithmetic number, because the mean of its divisors is an integer number (48597915).

Almost surely, 2^1346006646 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1346006646, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1555133280).

1346006646 is an abundant number, since it is smaller than the sum of its proper divisors (1764259914).

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

1346006646 is an frugal number, since it uses more digits than its factorization.

1346006646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8377 (or 8359 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The square root of 1346006646 is about 36687.9632304657. The cubic root of 1346006646 is about 1104.1186220601.

It can be divided in two parts, 134600 and 6646, that added together give a triangular number (141246 = T₅₃₁).

The spelling of 1346006646 in words is "one billion, three hundred forty-six million, six thousand, six hundred forty-six".