1304046645 has 48 divisors (see below), whose sum is σ = 2300538240. Its totient is φ = 630298240.

The previous prime is 1304046643. The next prime is 1304046649. The reversal of 1304046645 is 5466404031.

1304046645 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1304046645 - 2¹ = 1304046643 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1304046643) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 705112 + ... + 706958.

It is an arithmetic number, because the mean of its divisors is an integer number (47927880).

Almost surely, 2^1304046645 is an apocalyptic number.

1304046645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1304046645 is a deficient number, since it is larger than the sum of its proper divisors (996491595).

1304046645 is a wasteful number, since it uses less digits than its factorization.

1304046645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2266 (or 2255 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 1304046645 is about 36111.5860216635. The cubic root of 1304046645 is about 1092.5241407321.

It can be divided in two parts, 13040 and 46645, that added together give a triangular number (59685 = T₃₄₅).

The spelling of 1304046645 in words is "one billion, three hundred four million, forty-six thousand, six hundred forty-five".