1398049364 has 6 divisors (see below), whose sum is σ = 2446586394. Its totient is φ = 699024680.

The previous prime is 1398049363. The next prime is 1398049399. The reversal of 1398049364 is 4639408931.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1275061264 + 122988100 = 35708^2 + 11090^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1398049363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174756167 + ... + 174756174.

It is an arithmetic number, because the mean of its divisors is an integer number (407764399).

Almost surely, 2^1398049364 is an apocalyptic number.

It is an amenable number.

1398049364 is a deficient number, since it is larger than the sum of its proper divisors (1048537030).

1398049364 is a wasteful number, since it uses less digits than its factorization.

1398049364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349512345 (or 349512343 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 47.

The square root of 1398049364 is about 37390.4983117369. The cubic root of 1398049364 is about 1118.1691398951.

The spelling of 1398049364 in words is "one billion, three hundred ninety-eight million, forty-nine thousand, three hundred sixty-four".