1398354812 has 6 divisors (see below), whose sum is σ = 2447120928. Its totient is φ = 699177404.

The previous prime is 1398354803. The next prime is 1398354817. The reversal of 1398354812 is 2184538931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1398354817) 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 as a sum of consecutive naturals, namely, 174794348 + ... + 174794355.

It is an arithmetic number, because the mean of its divisors is an integer number (407853488).

Almost surely, 2^1398354812 is an apocalyptic number.

It is an amenable number.

1398354812 is a deficient number, since it is larger than the sum of its proper divisors (1048766116).

1398354812 is a wasteful number, since it uses less digits than its factorization.

1398354812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349588707 (or 349588705 counting only the distinct ones).

The product of its digits is 207360, while the sum is 44.

The square root of 1398354812 is about 37394.5826557805. The cubic root of 1398354812 is about 1118.2505670764.

The spelling of 1398354812 in words is "one billion, three hundred ninety-eight million, three hundred fifty-four thousand, eight hundred twelve".