2442636 has 72 divisors (see below), whose sum is σ = 7338240. Its totient is φ = 695952.

The previous prime is 2442631. The next prime is 2442667. The reversal of 2442636 is 6362442.

2442636 is a `hidden beast` number, since 24 + 4 + 2 + 636 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (2442631) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6625 + ... + 6983.

It is an arithmetic number, because the mean of its divisors is an integer number (101920).

2^2442636 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 2442636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3669120).

2442636 is an abundant number, since it is smaller than the sum of its proper divisors (4895604).

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

2442636 is a wasteful number, since it uses less digits than its factorization.

2442636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385 (or 371 counting only the distinct ones).

The product of its digits is 6912, while the sum is 27.

The square root of 2442636 is about 1562.8934704579. The cubic root of 2442636 is about 134.6747726824.

The spelling of 2442636 in words is "two million, four hundred forty-two thousand, six hundred thirty-six".