2420042 has 4 divisors (see below), whose sum is σ = 3630066. Its totient is φ = 1210020.

The previous prime is 2420017. The next prime is 2420051. The reversal of 2420042 is 2400242.

It is a happy number.

2420042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 1590121 + 829921 = 1261^2 + 911^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2419999 and 2420026.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 605009 + ... + 605012.

2^2420042 is an apocalyptic number.

2420042 is a deficient number, since it is larger than the sum of its proper divisors (1210024).

2420042 is a wasteful number, since it uses less digits than its factorization.

2420042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1210023.

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 2420042 is about 1555.6484178631. The cubic root of 2420042 is about 134.2582455833.

Adding to 2420042 its reverse (2400242), we get a palindrome (4820284).

It can be divided in two parts, 24200 and 42, that added together give a palindrome (24242).

The spelling of 2420042 in words is "two million, four hundred twenty thousand, forty-two".