4640840042 has 16 divisors (see below), whose sum is σ = 7265384640. Its totient is φ = 2219085792.

The previous prime is 4640840021. The next prime is 4640840051. The reversal of 4640840042 is 2400480464.

It is a super-3 number, since 3×4640840042³ (a number of 30 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4640839990 and 4640840008.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 395009 + ... + 406587.

It is an arithmetic number, because the mean of its divisors is an integer number (454086540).

Almost surely, 2^4640840042 is an apocalyptic number.

4640840042 is a deficient number, since it is larger than the sum of its proper divisors (2624544598).

4640840042 is a wasteful number, since it uses less digits than its factorization.

4640840042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20317.

The product of its (nonzero) digits is 24576, while the sum is 32.

The square root of 4640840042 is about 68123.7113052423. The cubic root of 4640840042 is about 1668.0108317917.

The spelling of 4640840042 in words is "four billion, six hundred forty million, eight hundred forty thousand, forty-two".