1768227840 has 176 divisors, whose sum is σ = 6284453760. Its totient is φ = 471490560.

The previous prime is 1768227829. The next prime is 1768227859. The reversal of 1768227840 is 487228671.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 131845 + ... + 144635.

Almost surely, 2^1768227840 is an apocalyptic number.

1768227840 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 1768227840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3142226880).

1768227840 is an abundant number, since it is smaller than the sum of its proper divisors (4516225920).

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

1768227840 is a wasteful number, since it uses less digits than its factorization.

1768227840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12825 (or 12801 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 45.

The square root of 1768227840 is about 42050.3013068872. The cubic root of 1768227840 is about 1209.2406591957.

The spelling of 1768227840 in words is "one billion, seven hundred sixty-eight million, two hundred twenty-seven thousand, eight hundred forty".