1768517040 has 80 divisors (see below), whose sum is σ = 5486586336. Its totient is φ = 471244800.

The previous prime is 1768517039. The next prime is 1768517057. The reversal of 1768517040 is 407158671.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 1768517040.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 497670 + ... + 501210.

Almost surely, 2^1768517040 is an apocalyptic number.

1768517040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1768517040 is an abundant number, since it is smaller than the sum of its proper divisors (3718069296).

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

1768517040 is a wasteful number, since it uses less digits than its factorization.

1768517040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5638 (or 5632 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 39.

The square root of 1768517040 is about 42053.7399050310. The cubic root of 1768517040 is about 1209.3065808164.

The spelling of 1768517040 in words is "one billion, seven hundred sixty-eight million, five hundred seventeen thousand, forty".