1386435394 has 4 divisors (see below), whose sum is σ = 2079653094. Its totient is φ = 693217696.

The previous prime is 1386435373. The next prime is 1386435409. The reversal of 1386435394 is 4935346831.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1198059769 + 188375625 = 34613^2 + 13725^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 346608847 + ... + 346608850.

Almost surely, 2^1386435394 is an apocalyptic number.

1386435394 is a deficient number, since it is larger than the sum of its proper divisors (693217700).

1386435394 is an equidigital number, since it uses as much as digits as its factorization.

1386435394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693217699.

The product of its digits is 933120, while the sum is 46.

The square root of 1386435394 is about 37234.8679868749. The cubic root of 1386435394 is about 1115.0642161062.

The spelling of 1386435394 in words is "one billion, three hundred eighty-six million, four hundred thirty-five thousand, three hundred ninety-four".