1356404329 has 6 divisors (see below), whose sum is σ = 1577858154. Its totient is φ = 1162632240.

The previous prime is 1356404321. The next prime is 1356404333. The reversal of 1356404329 is 9234046531.

It can be written as a sum of positive squares in only one way, i.e., 1356227929 + 176400 = 36827^2 + 420^2 .

It is not a de Polignac number, because 1356404329 - 2³ = 1356404321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1356404321) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13840812 + ... + 13840909.

It is an arithmetic number, because the mean of its divisors is an integer number (262976359).

Almost surely, 2^1356404329 is an apocalyptic number.

It is an amenable number.

1356404329 is a deficient number, since it is larger than the sum of its proper divisors (221453825).

1356404329 is an equidigital number, since it uses as much as digits as its factorization.

1356404329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27681735 (or 27681728 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 37.

The square root of 1356404329 is about 36829.3949040709. The cubic root of 1356404329 is about 1106.9543783783.

The spelling of 1356404329 in words is "one billion, three hundred fifty-six million, four hundred four thousand, three hundred twenty-nine".