1009388 has 12 divisors (see below), whose sum is σ = 1774752. Its totient is φ = 502320.

The previous prime is 1009387. The next prime is 1009399. The reversal of 1009388 is 8839001.

It is a happy number.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1009388.

It is not an unprimeable number, because it can be changed into a prime (1009387) 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 3 ways as a sum of consecutive naturals, for example, 653 + ... + 1563.

It is an arithmetic number, because the mean of its divisors is an integer number (147896).

2^1009388 is an apocalyptic number.

It is an amenable number.

1009388 is a deficient number, since it is larger than the sum of its proper divisors (765364).

1009388 is a wasteful number, since it uses less digits than its factorization.

1009388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1192 (or 1190 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 1009388 is about 1004.6830345935. The cubic root of 1009388 is about 100.3119591363.

The spelling of 1009388 in words is "one million, nine thousand, three hundred eighty-eight".