1388061363 has 32 divisors (see below), whose sum is σ = 2083594240. Its totient is φ = 816117120.

The previous prime is 1388061341. The next prime is 1388061379. The reversal of 1388061363 is 3631608831.

It is not a de Polignac number, because 1388061363 - 2⁵ = 1388061331 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (1388061313) 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, 88245 + ... + 102777.

It is an arithmetic number, because the mean of its divisors is an integer number (65112320).

Almost surely, 2^1388061363 is an apocalyptic number.

1388061363 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1388061363 is a deficient number, since it is larger than the sum of its proper divisors (695532877).

1388061363 is a wasteful number, since it uses less digits than its factorization.

1388061363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14659.

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 1388061363 is about 37256.6955459015. The cubic root of 1388061363 is about 1115.4999502079.

The spelling of 1388061363 in words is "one billion, three hundred eighty-eight million, sixty-one thousand, three hundred sixty-three".