1768816930 has 16 divisors (see below), whose sum is σ = 3184494264. Its totient is φ = 707388160.

The previous prime is 1768816921. The next prime is 1768816949. The reversal of 1768816930 is 396188671.

It can be written as a sum of positive squares in 4 ways, for example, as 836308561 + 932508369 = 28919^2 + 30537^2 .

It is a super-3 number, since 3×1768816930³ (a number of 29 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47994 + ... + 76426.

Almost surely, 2^1768816930 is an apocalyptic number.

1768816930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1768816930 is a deficient number, since it is larger than the sum of its proper divisors (1415677334).

1768816930 is a wasteful number, since it uses less digits than its factorization.

1768816930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34661.

The product of its (nonzero) digits is 435456, while the sum is 49.

The square root of 1768816930 is about 42057.3053107305. The cubic root of 1768816930 is about 1209.3749315768.

The spelling of 1768816930 in words is "one billion, seven hundred sixty-eight million, eight hundred sixteen thousand, nine hundred thirty".