1305738379 has 8 divisors (see below), whose sum is σ = 1424815920. Its totient is φ = 1186723200.

The previous prime is 1305738341. The next prime is 1305738407. The reversal of 1305738379 is 9738375031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1305738379 - 2¹⁷ = 1305607307 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1305738319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35487 + ... + 62215.

It is an arithmetic number, because the mean of its divisors is an integer number (178101990).

Almost surely, 2^1305738379 is an apocalyptic number.

1305738379 is a deficient number, since it is larger than the sum of its proper divisors (119077541).

1305738379 is a wasteful number, since it uses less digits than its factorization.

1305738379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31181.

The product of its (nonzero) digits is 476280, while the sum is 46.

The square root of 1305738379 is about 36135.0021308980. The cubic root of 1305738379 is about 1092.9963788407.

The spelling of 1305738379 in words is "one billion, three hundred five million, seven hundred thirty-eight thousand, three hundred seventy-nine".