1772727330 has 64 divisors (see below), whose sum is σ = 4651665408. Its totient is φ = 428794560.

The previous prime is 1772727317. The next prime is 1772727337. The reversal of 1772727330 is 337272771.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (1772727337) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 148359 + ... + 159861.

It is an arithmetic number, because the mean of its divisors is an integer number (72682272).

Almost surely, 2^1772727330 is an apocalyptic number.

1772727330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1772727330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2325832704).

1772727330 is an abundant number, since it is smaller than the sum of its proper divisors (2878938078).

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

1772727330 is a wasteful number, since it uses less digits than its factorization.

1772727330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11991.

The product of its (nonzero) digits is 86436, while the sum is 39.

The square root of 1772727330 is about 42103.7685961720. The cubic root of 1772727330 is about 1210.2654814419.

The spelling of 1772727330 in words is "one billion, seven hundred seventy-two million, seven hundred twenty-seven thousand, three hundred thirty".