1386420554 has 8 divisors (see below), whose sum is σ = 2080043940. Its totient is φ = 693072576.

The previous prime is 1386420521. The next prime is 1386420559. The reversal of 1386420554 is 4550246831.

It can be written as a sum of positive squares in 2 ways, for example, as 1258617529 + 127803025 = 35477^2 + 11305^2 .

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

It is a Curzon number.

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 in 3 ways as a sum of consecutive naturals, for example, 55769 + ... + 76700.

Almost surely, 2^1386420554 is an apocalyptic number.

1386420554 is a deficient number, since it is larger than the sum of its proper divisors (693623386).

1386420554 is a wasteful number, since it uses less digits than its factorization.

1386420554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137704.

The product of its (nonzero) digits is 115200, while the sum is 38.

The square root of 1386420554 is about 37234.6687107593. The cubic root of 1386420554 is about 1115.0602376513.

The spelling of 1386420554 in words is "one billion, three hundred eighty-six million, four hundred twenty thousand, five hundred fifty-four".