1088390 has 16 divisors (see below), whose sum is σ = 1976832. Its totient is φ = 431424.

The previous prime is 1088389. The next prime is 1088393. The reversal of 1088390 is 938801.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1088393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 842 + ... + 1698.

It is an arithmetic number, because the mean of its divisors is an integer number (123552).

2^1088390 is an apocalyptic number.

1088390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1088390 is a deficient number, since it is larger than the sum of its proper divisors (888442).

1088390 is a wasteful number, since it uses less digits than its factorization.

1088390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991.

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

The square root of 1088390 is about 1043.2593157983. The cubic root of 1088390 is about 102.8635513717.

The spelling of 1088390 in words is "one million, eighty-eight thousand, three hundred ninety".