1388449562 has 8 divisors (see below), whose sum is σ = 2083626336. Its totient is φ = 693907452.

The previous prime is 1388449549. The next prime is 1388449571. The reversal of 1388449562 is 2659448831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1388449562.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 153158 + ... + 161969.

It is an arithmetic number, because the mean of its divisors is an integer number (260453292).

Almost surely, 2^1388449562 is an apocalyptic number.

1388449562 is a deficient number, since it is larger than the sum of its proper divisors (695176774).

1388449562 is a wasteful number, since it uses less digits than its factorization.

1388449562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317332.

The product of its digits is 1658880, while the sum is 50.

The square root of 1388449562 is about 37261.9049700898. The cubic root of 1388449562 is about 1115.6039311062.

The spelling of 1388449562 in words is "one billion, three hundred eighty-eight million, four hundred forty-nine thousand, five hundred sixty-two".