1449143380 has 12 divisors (see below), whose sum is σ = 3043201140. Its totient is φ = 579657344.

The previous prime is 1449143347. The next prime is 1449143407. The reversal of 1449143380 is 833419441.

It can be written as a sum of positive squares in 2 ways, for example, as 1151787844 + 297355536 = 33938^2 + 17244^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36228565 + ... + 36228604.

It is an arithmetic number, because the mean of its divisors is an integer number (253600095).

Almost surely, 2^1449143380 is an apocalyptic number.

1449143380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1449143380 is an abundant number, since it is smaller than the sum of its proper divisors (1594057760).

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

1449143380 is a wasteful number, since it uses less digits than its factorization.

1449143380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72457178 (or 72457176 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 1449143380 is about 38067.6158959292. The cubic root of 1449143380 is about 1131.6282632353.

The spelling of 1449143380 in words is "one billion, four hundred forty-nine million, one hundred forty-three thousand, three hundred eighty".