1943472220 has 24 divisors (see below), whose sum is σ = 4091963904. Its totient is φ = 775356096.

The previous prime is 1943472217. The next prime is 1943472221. The reversal of 1943472220 is 222743491.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1943472221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119199 + ... + 134518.

It is an arithmetic number, because the mean of its divisors is an integer number (170498496).

Almost surely, 2^1943472220 is an apocalyptic number.

1943472220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1943472220 is an abundant number, since it is smaller than the sum of its proper divisors (2148491684).

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

1943472220 is a wasteful number, since it uses less digits than its factorization.

1943472220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254109 (or 254107 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 1943472220 is about 44084.8298170697. The cubic root of 1943472220 is about 1247.9373384808.

The spelling of 1943472220 in words is "one billion, nine hundred forty-three million, four hundred seventy-two thousand, two hundred twenty".