1398493107 has 80 divisors (see below), whose sum is σ = 2383603200. Its totient is φ = 809559360.

The previous prime is 1398493099. The next prime is 1398493121. The reversal of 1398493107 is 7013948931.

It is not a de Polignac number, because 1398493107 - 2³ = 1398493099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1398493007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1944694 + ... + 1945412.

It is an arithmetic number, because the mean of its divisors is an integer number (29795040).

Almost surely, 2^1398493107 is an apocalyptic number.

1398493107 is a deficient number, since it is larger than the sum of its proper divisors (985110093).

1398493107 is a wasteful number, since it uses less digits than its factorization.

1398493107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 838 (or 829 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 1398493107 is about 37396.4317415445. The cubic root of 1398493107 is about 1118.2874302442.

The spelling of 1398493107 in words is "one billion, three hundred ninety-eight million, four hundred ninety-three thousand, one hundred seven".