1356394369 has 8 divisors (see below), whose sum is σ = 1480379040. Its totient is φ = 1232522400.

The previous prime is 1356394339. The next prime is 1356394411. The reversal of 1356394369 is 9634936531.

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 1356394369 - 2⁷ = 1356394241 is a prime.

It is a super-2 number, since 2×1356394369² = 3679611368509816322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1356394339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1939 + ... + 52120.

It is an arithmetic number, because the mean of its divisors is an integer number (185047380).

Almost surely, 2^1356394369 is an apocalyptic number.

It is an amenable number.

1356394369 is a deficient number, since it is larger than the sum of its proper divisors (123984671).

1356394369 is a wasteful number, since it uses less digits than its factorization.

1356394369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56351.

The product of its digits is 1574640, while the sum is 49.

The square root of 1356394369 is about 36829.2596857444. The cubic root of 1356394369 is about 1106.9516689373.

The spelling of 1356394369 in words is "one billion, three hundred fifty-six million, three hundred ninety-four thousand, three hundred sixty-nine".