1366042356 has 36 divisors (see below), whose sum is σ = 3946345312. Its totient is φ = 390297744.

The previous prime is 1366042313. The next prime is 1366042393. The reversal of 1366042356 is 6532406631.

1366042356 is a `hidden beast` number, since 13 + 6 + 604 + 2 + 35 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1366042356.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2710150 + ... + 2710653.

Almost surely, 2^1366042356 is an apocalyptic number.

It is an amenable number.

1366042356 is an abundant number, since it is smaller than the sum of its proper divisors (2580302956).

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

1366042356 is a wasteful number, since it uses less digits than its factorization.

1366042356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5420820 (or 5420815 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

The square root of 1366042356 is about 36960.0102272713. The cubic root of 1366042356 is about 1109.5700404400.

Adding to 1366042356 its reverse (6532406631), we get a palindrome (7898448987).

The spelling of 1366042356 in words is "one billion, three hundred sixty-six million, forty-two thousand, three hundred fifty-six".