1398867044 has 12 divisors (see below), whose sum is σ = 2448653424. Its totient is φ = 699251784.

The previous prime is 1398867037. The next prime is 1398867047. The reversal of 1398867044 is 4407688931.

It is a junction number, because it is equal to n+sod(n) for n = 1398866983 and 1398867001.

It is not an unprimeable number, because it can be changed into a prime (1398867047) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 27314 + ... + 59529.

It is an arithmetic number, because the mean of its divisors is an integer number (204054452).

Almost surely, 2^1398867044 is an apocalyptic number.

It is an amenable number.

1398867044 is a deficient number, since it is larger than the sum of its proper divisors (1049786380).

1398867044 is a wasteful number, since it uses less digits than its factorization.

1398867044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90874 (or 90872 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 50.

The square root of 1398867044 is about 37401.4310421406. The cubic root of 1398867044 is about 1118.3870927022.

The spelling of 1398867044 in words is "one billion, three hundred ninety-eight million, eight hundred sixty-seven thousand, forty-four".