1386240004 has 12 divisors (see below), whose sum is σ = 2439943884. Its totient is φ = 689113184.

The previous prime is 1386239999. The next prime is 1386240017. The reversal of 1386240004 is 4000426831.

It can be written as a sum of positive squares in 2 ways, for example, as 1303065604 + 83174400 = 36098^2 + 9120^2 .

It is a super-2 number, since 2×1386240004² = 3843322697379840032, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1000927 + ... + 1002310.

It is an arithmetic number, because the mean of its divisors is an integer number (203328657).

Almost surely, 2^1386240004 is an apocalyptic number.

It is an amenable number.

1386240004 is a deficient number, since it is larger than the sum of its proper divisors (1053703880).

1386240004 is a wasteful number, since it uses less digits than its factorization.

1386240004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2003414 (or 2003412 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 1386240004 is about 37232.2441440212. The cubic root of 1386240004 is about 1115.0118317365.

Adding to 1386240004 its reverse (4000426831), we get a palindrome (5386666835).

The spelling of 1386240004 in words is "one billion, three hundred eighty-six million, two hundred forty thousand, four".