1608756340 has 24 divisors (see below), whose sum is σ = 3425974272. Its totient is φ = 634438560.

The previous prime is 1608756323. The next prime is 1608756341. The reversal of 1608756340 is 436578061.

It is a happy number.

It is a super-2 number, since 2×1608756340² = 5176193922980391200, which contains 22 as substring.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1608756293 and 1608756302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1608756341) by changing a digit.

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, 565044 + ... + 567883.

It is an arithmetic number, because the mean of its divisors is an integer number (142748928).

Almost surely, 2^1608756340 is an apocalyptic number.

1608756340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1608756340 is an abundant number, since it is smaller than the sum of its proper divisors (1817217932).

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

1608756340 is a wasteful number, since it uses less digits than its factorization.

1608756340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1133007 (or 1133005 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 1608756340 is about 40109.3049054705. The cubic root of 1608756340 is about 1171.7368559315.

It can be divided in two parts, 16087 and 56340, that added together give a palindrome (72427).

The spelling of 1608756340 in words is "one billion, six hundred eight million, seven hundred fifty-six thousand, three hundred forty".