2421402 has 8 divisors (see below), whose sum is σ = 4842816. Its totient is φ = 807132.

The previous prime is 2421389. The next prime is 2421403. The reversal of 2421402 is 2041242.

2421402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

2421402 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (2421403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 201778 + ... + 201789.

It is an arithmetic number, because the mean of its divisors is an integer number (605352).

2^2421402 is an apocalyptic number.

2421402 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2421402 is a wasteful number, since it uses less digits than its factorization.

2421402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403572.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 2421402 is about 1556.0854732308. The cubic root of 2421402 is about 134.2833907421.

Adding to 2421402 its reverse (2041242), we get a palindrome (4462644).

The spelling of 2421402 in words is "two million, four hundred twenty-one thousand, four hundred two".