1388450082 has 8 divisors (see below), whose sum is σ = 2776900176. Its totient is φ = 462816692.

The previous prime is 1388450071. The next prime is 1388450087. The reversal of 1388450082 is 2800548831.

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

1388450082 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 1388450082.

It is not an unprimeable number, because it can be changed into a prime (1388450087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115704168 + ... + 115704179.

It is an arithmetic number, because the mean of its divisors is an integer number (347112522).

Almost surely, 2^1388450082 is an apocalyptic number.

1388450082 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1388450082 is a wasteful number, since it uses less digits than its factorization.

1388450082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231408352.

The product of its (nonzero) digits is 61440, while the sum is 39.

The square root of 1388450082 is about 37261.9119477249. The cubic root of 1388450082 is about 1115.6040703776.

The spelling of 1388450082 in words is "one billion, three hundred eighty-eight million, four hundred fifty thousand, eighty-two".