4640505 has 8 divisors (see below), whose sum is σ = 7424832. Its totient is φ = 2474928.

The previous prime is 4640501. The next prime is 4640543. The reversal of 4640505 is 5050464.

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

It is not a de Polignac number, because 4640505 - 2² = 4640501 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4640501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154669 + ... + 154698.

It is an arithmetic number, because the mean of its divisors is an integer number (928104).

Almost surely, 2^4640505 is an apocalyptic number.

It is an amenable number.

4640505 is a deficient number, since it is larger than the sum of its proper divisors (2784327).

4640505 is a wasteful number, since it uses less digits than its factorization.

4640505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309375.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 4640505 is about 2154.1831398467. The cubic root of 4640505 is about 166.7970690558.

Adding to 4640505 its reverse (5050464), we get a palindrome (9690969).

The spelling of 4640505 in words is "four million, six hundred forty thousand, five hundred five".