1366400334 has 16 divisors (see below), whose sum is σ = 2943016272. Its totient is φ = 420430848.

The previous prime is 1366400323. The next prime is 1366400363. The reversal of 1366400334 is 4330046631.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8758899 + ... + 8759054.

It is an arithmetic number, because the mean of its divisors is an integer number (183938517).

Almost surely, 2^1366400334 is an apocalyptic number.

1366400334 is an abundant number, since it is smaller than the sum of its proper divisors (1576615938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1366400334 is a wasteful number, since it uses less digits than its factorization.

1366400334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17517971.

The product of its (nonzero) digits is 15552, while the sum is 30.

The square root of 1366400334 is about 36964.8526846787. The cubic root of 1366400334 is about 1109.6669547050. Note that the first 3 decimals are identical.

Adding to 1366400334 its reverse (4330046631), we get a palindrome (5696446965).

The spelling of 1366400334 in words is "one billion, three hundred sixty-six million, four hundred thousand, three hundred thirty-four".