1772718930 has 24 divisors (see below), whose sum is σ = 4609069452. Its totient is φ = 472725024.

The previous prime is 1772718919. The next prime is 1772718949. The reversal of 1772718930 is 398172771.

It can be written as a sum of positive squares in 2 ways, for example, as 1772325801 + 393129 = 42099^2 + 627^2 .

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 11 ways as a sum of consecutive naturals, for example, 9848349 + ... + 9848528.

Almost surely, 2^1772718930 is an apocalyptic number.

1772718930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1772718930 is an abundant number, since it is smaller than the sum of its proper divisors (2836350522).

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

1772718930 is a wasteful number, since it uses less digits than its factorization.

1772718930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19696890 (or 19696887 counting only the distinct ones).

The product of its (nonzero) digits is 148176, while the sum is 45.

The square root of 1772718930 is about 42103.6688425130. The cubic root of 1772718930 is about 1210.2635698402.

The spelling of 1772718930 in words is "one billion, seven hundred seventy-two million, seven hundred eighteen thousand, nine hundred thirty".