8440135 has 8 divisors (see below), whose sum is σ = 11048976. Its totient is φ = 6138240.

The previous prime is 8440097. The next prime is 8440139. The reversal of 8440135 is 5310448.

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

It is not a de Polignac number, because 8440135 - 2¹⁹ = 7915847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8440139) 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, 76674 + ... + 76783.

It is an arithmetic number, because the mean of its divisors is an integer number (1381122).

Almost surely, 2^8440135 is an apocalyptic number.

8440135 is a deficient number, since it is larger than the sum of its proper divisors (2608841).

8440135 is a wasteful number, since it uses less digits than its factorization.

8440135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153473.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 8440135 is about 2905.1910436321. The cubic root of 8440135 is about 203.6025116031.

The spelling of 8440135 in words is "eight million, four hundred forty thousand, one hundred thirty-five".