2420100442 has 4 divisors (see below), whose sum is σ = 3630150666. Its totient is φ = 1210050220.

The previous prime is 2420100421. The next prime is 2420100461. The reversal of 2420100442 is 2440010242.

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., 2416607281 + 3493161 = 49159^2 + 1869^2 .

It is a super-2 number, since 2×2420100442² = 11713772298737190728, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605025109 + ... + 605025112.

Almost surely, 2^2420100442 is an apocalyptic number.

2420100442 is a deficient number, since it is larger than the sum of its proper divisors (1210050224).

2420100442 is a wasteful number, since it uses less digits than its factorization.

2420100442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1210050223.

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 2420100442 is about 49194.5163814017. The cubic root of 2420100442 is about 1342.5932631627.

Adding to 2420100442 its reverse (2440010242), we get a palindrome (4860110684).

The spelling of 2420100442 in words is "two billion, four hundred twenty million, one hundred thousand, four hundred forty-two".