1386478203 has 64 divisors (see below), whose sum is σ = 2245017600. Its totient is φ = 751196160.

The previous prime is 1386478201. The next prime is 1386478213. The reversal of 1386478203 is 3028746831.

It is not a de Polignac number, because 1386478203 - 2¹ = 1386478201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1386478201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1138651 + ... + 1139867.

It is an arithmetic number, because the mean of its divisors is an integer number (35078400).

Almost surely, 2^1386478203 is an apocalyptic number.

1386478203 is a deficient number, since it is larger than the sum of its proper divisors (858539397).

1386478203 is a wasteful number, since it uses less digits than its factorization.

1386478203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1352.

The product of its (nonzero) digits is 193536, while the sum is 42.

The square root of 1386478203 is about 37235.4428334081. The cubic root of 1386478203 is about 1115.0756926099.

The spelling of 1386478203 in words is "one billion, three hundred eighty-six million, four hundred seventy-eight thousand, two hundred three".