1023388 has 6 divisors (see below), whose sum is σ = 1790936. Its totient is φ = 511692.

The previous prime is 1023367. The next prime is 1023389. The reversal of 1023388 is 8833201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023389) 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 as a sum of consecutive naturals, namely, 127920 + ... + 127927.

2^1023388 is an apocalyptic number.

It is an amenable number.

1023388 is a deficient number, since it is larger than the sum of its proper divisors (767548).

1023388 is a wasteful number, since it uses less digits than its factorization.

1023388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255851 (or 255849 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 1023388 is about 1011.6264132574. The cubic root of 1023388 is about 100.7735999982.

Adding to 1023388 its reverse (8833201), we get a palindrome (9856589).

The spelling of 1023388 in words is "one million, twenty-three thousand, three hundred eighty-eight".