1388612 has 12 divisors (see below), whose sum is σ = 2439360. Its totient is φ = 691656.

The previous prime is 1388603. The next prime is 1388623. The reversal of 1388612 is 2168831.

It is an Ulam number.

It is a pancake number, because a pancake can be divided into 1388612 parts by 1666 straight cuts.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 953 + ... + 1919.

It is an arithmetic number, because the mean of its divisors is an integer number (203280).

2^1388612 is an apocalyptic number.

It is an amenable number.

1388612 is a deficient number, since it is larger than the sum of its proper divisors (1050748).

1388612 is a wasteful number, since it uses less digits than its factorization.

1388612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1330 (or 1328 counting only the distinct ones).

The product of its digits is 2304, while the sum is 29.

The square root of 1388612 is about 1178.3938221155. The cubic root of 1388612 is about 111.5647435124.

The spelling of 1388612 in words is "one million, three hundred eighty-eight thousand, six hundred twelve".