2421535442 has 4 divisors (see below), whose sum is σ = 3632303166. Its totient is φ = 1210767720.

The previous prime is 2421535379. The next prime is 2421535447. The reversal of 2421535442 is 2445351242.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1983009961 + 438525481 = 44531^2 + 20941^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2421535399 and 2421535408.

It is not an unprimeable number, because it can be changed into a prime (2421535447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605383859 + ... + 605383862.

Almost surely, 2^2421535442 is an apocalyptic number.

2421535442 is a deficient number, since it is larger than the sum of its proper divisors (1210767724).

2421535442 is a wasteful number, since it uses less digits than its factorization.

2421535442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1210767723.

The product of its digits is 38400, while the sum is 32.

The square root of 2421535442 is about 49209.0991789120. The cubic root of 2421535442 is about 1342.8585745560.

Adding to 2421535442 its reverse (2445351242), we get a palindrome (4866886684).

The spelling of 2421535442 in words is "two billion, four hundred twenty-one million, five hundred thirty-five thousand, four hundred forty-two".