2420244 has 72 divisors (see below), whose sum is σ = 6639360. Its totient is φ = 741312.

The previous prime is 2420237. The next prime is 2420251. The reversal of 2420244 is 4420242.

2420244 is a `hidden beast` number, since 2 + 420 + 244 = 666.

It is an interprime number because it is at equal distance from previous prime (2420237) and next prime (2420251).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nialpdrome in base 12.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30597 + ... + 30675.

2^2420244 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2420244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3319680).

2420244 is an abundant number, since it is smaller than the sum of its proper divisors (4219116).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2420244 is a wasteful number, since it uses less digits than its factorization.

2420244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149 (or 144 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

The square root of 2420244 is about 1555.7133412040. The cubic root of 2420244 is about 134.2619809746.

Adding to 2420244 its reverse (4420242), we get a palindrome (6840486).

The spelling of 2420244 in words is "two million, four hundred twenty thousand, two hundred forty-four".