1386420556 has 6 divisors (see below), whose sum is σ = 2426235980. Its totient is φ = 693210276.

The previous prime is 1386420521. The next prime is 1386420559. The reversal of 1386420556 is 6550246831.

It is not an unprimeable number, because it can be changed into a prime (1386420559) by changing a digit.

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, 173302566 + ... + 173302573.

Almost surely, 2^1386420556 is an apocalyptic number.

It is an amenable number.

1386420556 is a deficient number, since it is larger than the sum of its proper divisors (1039815424).

1386420556 is a wasteful number, since it uses less digits than its factorization.

1386420556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346605143 (or 346605141 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 40.

The square root of 1386420556 is about 37234.6687376160. The cubic root of 1386420556 is about 1115.0602381875.

The spelling of 1386420556 in words is "one billion, three hundred eighty-six million, four hundred twenty thousand, five hundred fifty-six".