1386720034 has 16 divisors (see below), whose sum is σ = 2387620800. Its totient is φ = 591711984.

The previous prime is 1386719977. The next prime is 1386720043. The reversal of 1386720034 is 4300276831.

It is a happy number.

It is a super-2 number, since 2×1386720034² = 3845984905393922312, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213064 + ... + 219475.

It is an arithmetic number, because the mean of its divisors is an integer number (149226300).

Almost surely, 2^1386720034 is an apocalyptic number.

1386720034 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1386720034 is a deficient number, since it is larger than the sum of its proper divisors (1000900766).

1386720034 is a wasteful number, since it uses less digits than its factorization.

1386720034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432777.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 1386720034 is about 37238.6900145534. The cubic root of 1386720034 is about 1115.1405197363.

Adding to 1386720034 its reverse (4300276831), we get a palindrome (5686996865).

The spelling of 1386720034 in words is "one billion, three hundred eighty-six million, seven hundred twenty thousand, thirty-four".