1366398524 has 12 divisors (see below), whose sum is σ = 2423954064. Its totient is φ = 673840224.

The previous prime is 1366398521. The next prime is 1366398541. The reversal of 1366398524 is 4258936631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1366398521) 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, 2339432 + ... + 2340015.

It is an arithmetic number, because the mean of its divisors is an integer number (201996172).

Almost surely, 2^1366398524 is an apocalyptic number.

It is an amenable number.

1366398524 is a deficient number, since it is larger than the sum of its proper divisors (1057555540).

1366398524 is a wasteful number, since it uses less digits than its factorization.

1366398524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4679524 (or 4679522 counting only the distinct ones).

The product of its digits is 933120, while the sum is 47.

The square root of 1366398524 is about 36964.8282019544. The cubic root of 1366398524 is about 1109.6664647319. Note that the first 3 decimals are identical.

The spelling of 1366398524 in words is "one billion, three hundred sixty-six million, three hundred ninety-eight thousand, five hundred twenty-four".