1791478944 has 120 divisors (see below), whose sum is σ = 5450597460. Its totient is φ = 576543744.

The previous prime is 1791478939. The next prime is 1791478957. The reversal of 1791478944 is 4498741971.

It can be written as a sum of positive squares in 2 ways, for example, as 1699088400 + 92390544 = 41220^2 + 9612^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 63252 + ... + 87084.

Almost surely, 2^1791478944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1791478944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2725298730).

1791478944 is an abundant number, since it is smaller than the sum of its proper divisors (3659118516).

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

1791478944 is a wasteful number, since it uses less digits than its factorization.

1791478944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23884 (or 23867 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 54.

The square root of 1791478944 is about 42325.8661340793. The cubic root of 1791478944 is about 1214.5178516757.

The spelling of 1791478944 in words is "one billion, seven hundred ninety-one million, four hundred seventy-eight thousand, nine hundred forty-four".