1346338638 has 16 divisors (see below), whose sum is σ = 2991863760. Its totient is φ = 448779528.

The previous prime is 1346338627. The next prime is 1346338657. The reversal of 1346338638 is 8368336431.

1346338638 is a `hidden beast` number, since 1 + 3 + 4 + 6 + 3 + 3 + 8 + 638 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1346338593 and 1346338602.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12466045 + ... + 12466152.

It is an arithmetic number, because the mean of its divisors is an integer number (186991485).

Almost surely, 2^1346338638 is an apocalyptic number.

1346338638 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1346338638 is an abundant number, since it is smaller than the sum of its proper divisors (1645525122).

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

1346338638 is a wasteful number, since it uses less digits than its factorization.

1346338638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24932208 (or 24932202 counting only the distinct ones).

The product of its digits is 746496, while the sum is 45.

The square root of 1346338638 is about 36692.4874872228. The cubic root of 1346338638 is about 1104.2093914031.

The spelling of 1346338638 in words is "one billion, three hundred forty-six million, three hundred thirty-eight thousand, six hundred thirty-eight".