1026388 has 12 divisors (see below), whose sum is σ = 1959552. Its totient is φ = 466520.

The previous prime is 1026383. The next prime is 1026391. The reversal of 1026388 is 8836201.

It is a nialpdrome in base 4 and base 16.

It is a zygodrome in base 6.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1026383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11620 + ... + 11707.

It is an arithmetic number, because the mean of its divisors is an integer number (163296).

2^1026388 is an apocalyptic number.

It is an amenable number.

1026388 is a deficient number, since it is larger than the sum of its proper divisors (933164).

1026388 is a wasteful number, since it uses less digits than its factorization.

1026388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23342 (or 23340 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 1026388 is about 1013.1080890014. The cubic root of 1026388 is about 100.8719745047.

The spelling of 1026388 in words is "one million, twenty-six thousand, three hundred eighty-eight".