1208001398 has 4 divisors (see below), whose sum is σ = 1812002100. Its totient is φ = 604000698.

The previous prime is 1208001383. The next prime is 1208001413. The reversal of 1208001398 is 8931008021.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1208001383) and next prime (1208001413).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 302000348 + ... + 302000351.

It is an arithmetic number, because the mean of its divisors is an integer number (453000525).

Almost surely, 2^1208001398 is an apocalyptic number.

1208001398 is a deficient number, since it is larger than the sum of its proper divisors (604000702).

1208001398 is an equidigital number, since it uses as much as digits as its factorization.

1208001398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604000701.

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 1208001398 is about 34756.3145054248. The cubic root of 1208001398 is about 1065.0152151646.

The spelling of 1208001398 in words is "one billion, two hundred eight million, one thousand, three hundred ninety-eight".