1388013 has 8 divisors (see below), whose sum is σ = 2018976. Its totient is φ = 841200.

The previous prime is 1388011. The next prime is 1388021. The reversal of 1388013 is 3108831.

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

It is not a de Polignac number, because 1388013 - 2¹ = 1388011 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1388011) 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 7 ways as a sum of consecutive naturals, for example, 20998 + ... + 21063.

It is an arithmetic number, because the mean of its divisors is an integer number (252372).

2^1388013 is an apocalyptic number.

It is an amenable number.

1388013 is a deficient number, since it is larger than the sum of its proper divisors (630963).

1388013 is a wasteful number, since it uses less digits than its factorization.

1388013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42075.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 1388013 is about 1178.1396351876. The cubic root of 1388013 is about 111.5486994597.

The spelling of 1388013 in words is "one million, three hundred eighty-eight thousand, thirteen".