1340281450 has 12 divisors (see below), whose sum is σ = 2492923590. Its totient is φ = 536112560.

The previous prime is 1340281441. The next prime is 1340281457. The reversal of 1340281450 is 541820431.

It can be written as a sum of positive squares in 3 ways, for example, as 1289743569 + 50537881 = 35913^2 + 7109^2 .

It is not an unprimeable number, because it can be changed into a prime (1340281457) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13402765 + ... + 13402864.

Almost surely, 2^1340281450 is an apocalyptic number.

1340281450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1340281450 is a deficient number, since it is larger than the sum of its proper divisors (1152642140).

1340281450 is a wasteful number, since it uses less digits than its factorization.

1340281450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26805641 (or 26805636 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 1340281450 is about 36609.8545476488. The cubic root of 1340281450 is about 1102.5509529227.

The spelling of 1340281450 in words is "one billion, three hundred forty million, two hundred eighty-one thousand, four hundred fifty".