2440155 has 8 divisors (see below), whose sum is σ = 3904272. Its totient is φ = 1301408.

The previous prime is 2440153. The next prime is 2440177. The reversal of 2440155 is 5510442.

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

It is a cyclic number.

It is not a de Polignac number, because 2440155 - 2¹ = 2440153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2440153) 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, 81324 + ... + 81353.

It is an arithmetic number, because the mean of its divisors is an integer number (488034).

2^2440155 is an apocalyptic number.

2440155 is a deficient number, since it is larger than the sum of its proper divisors (1464117).

2440155 is a wasteful number, since it uses less digits than its factorization.

2440155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162685.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 2440155 is about 1562.0995486844. The cubic root of 2440155 is about 134.6291605787.

Adding to 2440155 its reverse (5510442), we get a palindrome (7950597).

The spelling of 2440155 in words is "two million, four hundred forty thousand, one hundred fifty-five".