1449395380 has 24 divisors (see below), whose sum is σ = 3093630120. Its totient is φ = 570253440.

The previous prime is 1449395377. The next prime is 1449395407. The reversal of 1449395380 is 835939441.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 124144164 + 1325251216 = 11142^2 + 36404^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1449395380.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 592795 + ... + 595234.

It is an arithmetic number, because the mean of its divisors is an integer number (128901255).

Almost surely, 2^1449395380 is an apocalyptic number.

1449395380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1449395380 is an abundant number, since it is smaller than the sum of its proper divisors (1644234740).

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

1449395380 is a wasteful number, since it uses less digits than its factorization.

1449395380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1188099 (or 1188097 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 46.

The square root of 1449395380 is about 38070.9256519985. The cubic root of 1449395380 is about 1131.6938545812.

The spelling of 1449395380 in words is "one billion, four hundred forty-nine million, three hundred ninety-five thousand, three hundred eighty".