1366450438 has 8 divisors (see below), whose sum is σ = 2055171888. Its totient is φ = 681393144.

The previous prime is 1366450409. The next prime is 1366450469. The reversal of 1366450438 is 8340546631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1366450438.

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, 915106 + ... + 916597.

It is an arithmetic number, because the mean of its divisors is an integer number (256896486).

Almost surely, 2^1366450438 is an apocalyptic number.

1366450438 is a deficient number, since it is larger than the sum of its proper divisors (688721450).

1366450438 is a wasteful number, since it uses less digits than its factorization.

1366450438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1832078.

The product of its (nonzero) digits is 207360, while the sum is 40.

The square root of 1366450438 is about 36965.5304033366. The cubic root of 1366450438 is about 1109.6805178539.

The spelling of 1366450438 in words is "one billion, three hundred sixty-six million, four hundred fifty thousand, four hundred thirty-eight".