4640042 has 8 divisors (see below), whose sum is σ = 7592832. Its totient is φ = 2109100.

The previous prime is 4640017. The next prime is 4640057. The reversal of 4640042 is 2400464.

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

It is a junction number, because it is equal to n+sod(n) for n = 4639996 and 4640023.

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 in 3 ways as a sum of consecutive naturals, for example, 105434 + ... + 105477.

It is an arithmetic number, because the mean of its divisors is an integer number (949104).

Almost surely, 2^4640042 is an apocalyptic number.

4640042 is a deficient number, since it is larger than the sum of its proper divisors (2952790).

4640042 is a wasteful number, since it uses less digits than its factorization.

4640042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210924.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 4640042 is about 2154.0756718370. The cubic root of 4640042 is about 166.7915215553.

It can be divided in two parts, 4 and 640042, that added together give a palindrome (640046).

The spelling of 4640042 in words is "four million, six hundred forty thousand, forty-two".