1398324387 has 16 divisors (see below), whose sum is σ = 1950959520. Its totient is φ = 889903872.

The previous prime is 1398324383. The next prime is 1398324397. The reversal of 1398324387 is 7834238931.

1398324387 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1398324387 - 2² = 1398324383 is a prime.

It is a super-2 number, since 2×1398324387² = 3910622182557851538, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1398324383) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112962 + ... + 124727.

It is an arithmetic number, because the mean of its divisors is an integer number (121934970).

Almost surely, 2^1398324387 is an apocalyptic number.

1398324387 is a deficient number, since it is larger than the sum of its proper divisors (552635133).

1398324387 is a wasteful number, since it uses less digits than its factorization.

1398324387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237782.

The product of its digits is 870912, while the sum is 48.

The square root of 1398324387 is about 37394.1758433048. The cubic root of 1398324387 is about 1118.2424568267.

The spelling of 1398324387 in words is "one billion, three hundred ninety-eight million, three hundred twenty-four thousand, three hundred eighty-seven".