1368791450 has 24 divisors (see below), whose sum is σ = 2741795868. Its totient is φ = 505399680.

The previous prime is 1368791449. The next prime is 1368791471. The reversal of 1368791450 is 541978631.

It can be written as a sum of positive squares in 6 ways, for example, as 129117769 + 1239673681 = 11363^2 + 35209^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1052267 + ... + 1053566.

Almost surely, 2^1368791450 is an apocalyptic number.

1368791450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1368791450 is an abundant number, since it is smaller than the sum of its proper divisors (1373004418).

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

1368791450 is a wasteful number, since it uses less digits than its factorization.

1368791450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2105858 (or 2105853 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 1368791450 is about 36997.1816494176. The cubic root of 1368791450 is about 1110.3138603296.

The spelling of 1368791450 in words is "one billion, three hundred sixty-eight million, seven hundred ninety-one thousand, four hundred fifty".