1398316536 has 24 divisors (see below), whose sum is σ = 3787107480. Its totient is φ = 466105488.

The previous prime is 1398316523. The next prime is 1398316537. The reversal of 1398316536 is 6356138931.

1398316536 is a `hidden beast` number, since 1 + 39 + 83 + 1 + 6 + 536 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 1398316491 and 1398316500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1398316537) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 9710460 + ... + 9710603.

It is an arithmetic number, because the mean of its divisors is an integer number (157796145).

Almost surely, 2^1398316536 is an apocalyptic number.

It is an amenable number.

1398316536 is an abundant number, since it is smaller than the sum of its proper divisors (2388790944).

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

1398316536 is a wasteful number, since it uses less digits than its factorization.

1398316536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19421075 (or 19421068 counting only the distinct ones).

The product of its digits is 349920, while the sum is 45.

The square root of 1398316536 is about 37394.0708669169. The cubic root of 1398316536 is about 1118.2403640033.

The spelling of 1398316536 in words is "one billion, three hundred ninety-eight million, three hundred sixteen thousand, five hundred thirty-six".