1366400622 has 32 divisors (see below), whose sum is σ = 2752963200. Its totient is φ = 452119328.

The previous prime is 1366400603. The next prime is 1366400657. The reversal of 1366400622 is 2260046631.

It is a self number, because there is not a number n which added to its sum of digits gives 1366400622.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 528529 + ... + 531107.

It is an arithmetic number, because the mean of its divisors is an integer number (86030100).

Almost surely, 2^1366400622 is an apocalyptic number.

1366400622 is an abundant number, since it is smaller than the sum of its proper divisors (1386562578).

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

1366400622 is a wasteful number, since it uses less digits than its factorization.

1366400622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3200.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 1366400622 is about 36964.8565802709. The cubic root of 1366400622 is about 1109.6670326675.

The spelling of 1366400622 in words is "one billion, three hundred sixty-six million, four hundred thousand, six hundred twenty-two".