1448161780 has 24 divisors (see below), whose sum is σ = 3275074152. Its totient is φ = 534705792.

The previous prime is 1448161763. The next prime is 1448161789. The reversal of 1448161780 is 871618441.

It can be written as a sum of positive squares in 4 ways, for example, as 30338064 + 1417823716 = 5508^2 + 37654^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1448161789) 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, 2784667 + ... + 2785186.

It is an arithmetic number, because the mean of its divisors is an integer number (136461423).

Almost surely, 2^1448161780 is an apocalyptic number.

1448161780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1448161780 is an abundant number, since it is smaller than the sum of its proper divisors (1826912372).

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

1448161780 is a wasteful number, since it uses less digits than its factorization.

1448161780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5569875 (or 5569873 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 40.

The square root of 1448161780 is about 38054.7208635144. The cubic root of 1448161780 is about 1131.3726968043.

The spelling of 1448161780 in words is "one billion, four hundred forty-eight million, one hundred sixty-one thousand, seven hundred eighty".