1768223520 has 576 divisors, whose sum is σ = 7330901760. Its totient is φ = 394149888.

The previous prime is 1768223503. The next prime is 1768223521. The reversal of 1768223520 is 253228671.

It is a super-2 number, since 2×1768223520² = 6253228833362380800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1768223521) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 19867636 + ... + 19867724.

It is an arithmetic number, because the mean of its divisors is an integer number (12727260).

Almost surely, 2^1768223520 is an apocalyptic number.

1768223520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1768223520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3665450880).

1768223520 is an abundant number, since it is smaller than the sum of its proper divisors (5562678240).

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

1768223520 is an equidigital number, since it uses as much as digits as its factorization.

1768223520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199 (or 179 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 1768223520 is about 42050.2499398042. The cubic root of 1768223520 is about 1209.2396744199.

The spelling of 1768223520 in words is "one billion, seven hundred sixty-eight million, two hundred twenty-three thousand, five hundred twenty".