1386413385 has 32 divisors (see below), whose sum is σ = 2557612800. Its totient is φ = 628174848.

The previous prime is 1386413381. The next prime is 1386413437. The reversal of 1386413385 is 5833146831.

It is not a de Polignac number, because 1386413385 - 2² = 1386413381 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1386413381) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46560 + ... + 70289.

It is an arithmetic number, because the mean of its divisors is an integer number (79925400).

Almost surely, 2^1386413385 is an apocalyptic number.

1386413385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1386413385 is a deficient number, since it is larger than the sum of its proper divisors (1171199415).

1386413385 is a wasteful number, since it uses less digits than its factorization.

1386413385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116977.

The product of its digits is 207360, while the sum is 42.

The square root of 1386413385 is about 37234.5724428252. The cubic root of 1386413385 is about 1115.0583157043.

The spelling of 1386413385 in words is "one billion, three hundred eighty-six million, four hundred thirteen thousand, three hundred eighty-five".