1366425600 has 216 divisors, whose sum is σ = 4550802480. Its totient is φ = 361758720.

The previous prime is 1366425589. The next prime is 1366425611. The reversal of 1366425600 is 65246631.

It is an interprime number because it is at equal distance from previous prime (1366425589) and next prime (1366425611).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9830331 + ... + 9830469.

It is an arithmetic number, because the mean of its divisors is an integer number (21068530).

Almost surely, 2^1366425600 is an apocalyptic number.

1366425600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1366425600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2275401240).

1366425600 is an abundant number, since it is smaller than the sum of its proper divisors (3184376880).

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

1366425600 is an frugal number, since it uses more digits than its factorization.

1366425600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186 (or 149 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 1366425600 is about 36965.1944401757. The cubic root of 1366425600 is about 1109.6737942507.

The spelling of 1366425600 in words is "one billion, three hundred sixty-six million, four hundred twenty-five thousand, six hundred".