1088409 has 8 divisors (see below), whose sum is σ = 1658560. Its totient is φ = 621936.

The previous prime is 1088407. The next prime is 1088413. The reversal of 1088409 is 9048801.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1088409 - 2¹ = 1088407 is a prime.

It is a Duffinian number.

1088409 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1088407) 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, 25894 + ... + 25935.

It is an arithmetic number, because the mean of its divisors is an integer number (207320).

2^1088409 is an apocalyptic number.

It is an amenable number.

1088409 is a deficient number, since it is larger than the sum of its proper divisors (570151).

1088409 is an equidigital number, since it uses as much as digits as its factorization.

1088409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51839.

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 1088409 is about 1043.2684218359. The cubic root of 1088409 is about 102.8641499305.

The spelling of 1088409 in words is "one million, eighty-eight thousand, four hundred nine".