1768225640 has 32 divisors (see below), whose sum is σ = 3987528480. Its totient is φ = 705686592.

The previous prime is 1768225619. The next prime is 1768225687. The reversal of 1768225640 is 465228671.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32174 + ... + 67613.

It is an arithmetic number, because the mean of its divisors is an integer number (124610265).

Almost surely, 2^1768225640 is an apocalyptic number.

1768225640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1768225640 is an abundant number, since it is smaller than the sum of its proper divisors (2219302840).

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

1768225640 is a wasteful number, since it uses less digits than its factorization.

1768225640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100241 (or 100237 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 1768225640 is about 42050.2751477324. The cubic root of 1768225640 is about 1209.2401576897.

The spelling of 1768225640 in words is "one billion, seven hundred sixty-eight million, two hundred twenty-five thousand, six hundred forty".