2420271 has 24 divisors (see below), whose sum is σ = 4097184. Its totient is φ = 1347840.

The previous prime is 2420269. The next prime is 2420279. The reversal of 2420271 is 1720242.

It is not a de Polignac number, because 2420271 - 2¹ = 2420269 is a prime.

2420271 is a lucky number.

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2420279) 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 23 ways as a sum of consecutive naturals, for example, 2115 + ... + 3051.

It is an arithmetic number, because the mean of its divisors is an integer number (170716).

2^2420271 is an apocalyptic number.

2420271 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2420271 is a deficient number, since it is larger than the sum of its proper divisors (1676913).

2420271 is a wasteful number, since it uses less digits than its factorization.

2420271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991 (or 988 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 2420271 is about 1555.7220188710. The cubic root of 2420271 is about 134.2624802438.

The spelling of 2420271 in words is "two million, four hundred twenty thousand, two hundred seventy-one".