2402442 has 48 divisors (see below), whose sum is σ = 6215040. Its totient is φ = 655776.

The previous prime is 2402441. The next prime is 2402461. The reversal of 2402442 is 2442042.

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

It is not an unprimeable number, because it can be changed into a prime (2402441) 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, 2484 + ... + 3312.

It is an arithmetic number, because the mean of its divisors is an integer number (129480).

2^2402442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2402442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3107520).

2402442 is an abundant number, since it is smaller than the sum of its proper divisors (3812598).

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

2402442 is a wasteful number, since it uses less digits than its factorization.

2402442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867 (or 864 counting only the distinct ones).

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

The square root of 2402442 is about 1549.9812902097. The cubic root of 2402442 is about 133.9319844921.

Adding to 2402442 its reverse (2442042), we get a palindrome (4844484).

The spelling of 2402442 in words is "two million, four hundred two thousand, four hundred forty-two".