1366542344 has 16 divisors (see below), whose sum is σ = 2574413520. Its totient is φ = 680032080.

The previous prime is 1366542337. The next prime is 1366542347. The reversal of 1366542344 is 4432456631.

It is a junction number, because it is equal to n+sod(n) for n = 1366542298 and 1366542307.

It is not an unprimeable number, because it can be changed into a prime (1366542347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 403094 + ... + 406469.

It is an arithmetic number, because the mean of its divisors is an integer number (160900845).

Almost surely, 2^1366542344 is an apocalyptic number.

It is an amenable number.

1366542344 is a deficient number, since it is larger than the sum of its proper divisors (1207871176).

1366542344 is a wasteful number, since it uses less digits than its factorization.

1366542344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809780 (or 809776 counting only the distinct ones).

The product of its digits is 207360, while the sum is 38.

The square root of 1366542344 is about 36966.7735135216. The cubic root of 1366542344 is about 1109.7053959391.

Adding to 1366542344 its reverse (4432456631), we get a palindrome (5798998975).

The spelling of 1366542344 in words is "one billion, three hundred sixty-six million, five hundred forty-two thousand, three hundred forty-four".