1304772066 has 192 divisors, whose sum is σ = 3461028480. Its totient is φ = 350853120.

The previous prime is 1304772059. The next prime is 1304772097. The reversal of 1304772066 is 6602774031.

It is a self number, because there is not a number n which added to its sum of digits gives 1304772066.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4610361 + ... + 4610643.

It is an arithmetic number, because the mean of its divisors is an integer number (18026190).

Almost surely, 2^1304772066 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1304772066, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1730514240).

1304772066 is an abundant number, since it is smaller than the sum of its proper divisors (2156256414).

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

1304772066 is a wasteful number, since it uses less digits than its factorization.

1304772066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401 (or 398 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 1304772066 is about 36121.6287838741. The cubic root of 1304772066 is about 1092.7266879451.

The spelling of 1304772066 in words is "one billion, three hundred four million, seven hundred seventy-two thousand, sixty-six".