2420155 has 8 divisors (see below), whose sum is σ = 2923632. Its totient is φ = 1923168.

The previous prime is 2420123. The next prime is 2420167. The reversal of 2420155 is 5510242.

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 2420155 - 2⁵ = 2420123 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 757 + ... + 2326.

It is an arithmetic number, because the mean of its divisors is an integer number (365454).

2^2420155 is an apocalyptic number.

2420155 is a deficient number, since it is larger than the sum of its proper divisors (503477).

2420155 is a wasteful number, since it uses less digits than its factorization.

2420155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3245.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 2420155 is about 1555.6847366996. The cubic root of 2420155 is about 134.2603352090.

Adding to 2420155 its reverse (5510242), we get a palindrome (7930397).

The spelling of 2420155 in words is "two million, four hundred twenty thousand, one hundred fifty-five".