1398761048 has 8 divisors (see below), whose sum is σ = 2622676980. Its totient is φ = 699380520.

The previous prime is 1398761027. The next prime is 1398761051. The reversal of 1398761048 is 8401678931.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 1398760993 and 1398761011.

It is a congruent number.

It is an unprimeable number.

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, 87422558 + ... + 87422573.

Almost surely, 2^1398761048 is an apocalyptic number.

It is an amenable number.

1398761048 is a deficient number, since it is larger than the sum of its proper divisors (1223915932).

1398761048 is a wasteful number, since it uses less digits than its factorization.

1398761048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174845137 (or 174845133 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 47.

The square root of 1398761048 is about 37400.0140106926. The cubic root of 1398761048 is about 1118.3588442342.

The spelling of 1398761048 in words is "one billion, three hundred ninety-eight million, seven hundred sixty-one thousand, forty-eight".