1772938020 has 48 divisors (see below), whose sum is σ = 5673403008. Its totient is φ = 405242880.

The previous prime is 1772938009. The next prime is 1772938039. The reversal of 1772938020 is 208392771.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1772938020.

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, 2110221 + ... + 2111060.

It is an arithmetic number, because the mean of its divisors is an integer number (118195896).

Almost surely, 2^1772938020 is an apocalyptic number.

1772938020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1772938020 is an abundant number, since it is smaller than the sum of its proper divisors (3900464988).

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

1772938020 is a wasteful number, since it uses less digits than its factorization.

1772938020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4221300 (or 4221298 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 39.

The square root of 1772938020 is about 42106.2705543961. The cubic root of 1772938020 is about 1210.3134265355.

The spelling of 1772938020 in words is "one billion, seven hundred seventy-two million, nine hundred thirty-eight thousand, twenty".