2400155 has 8 divisors (see below), whose sum is σ = 2921184. Its totient is φ = 1892800.

The previous prime is 2400143. The next prime is 2400157. The reversal of 2400155 is 5510042.

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

It is a de Polignac number, because none of the positive numbers 2^k-2400155 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2400157) 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 7 ways as a sum of consecutive naturals, for example, 3026 + ... + 3735.

It is an arithmetic number, because the mean of its divisors is an integer number (365148).

2^2400155 is an apocalyptic number.

2400155 is a deficient number, since it is larger than the sum of its proper divisors (521029).

2400155 is an equidigital number, since it uses as much as digits as its factorization.

2400155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6837.

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 2400155 is about 1549.2433637102. The cubic root of 2400155 is about 133.8894722351.

Adding to 2400155 its reverse (5510042), we get a palindrome (7910197).

The spelling of 2400155 in words is "two million, four hundred thousand, one hundred fifty-five".