4640403 has 8 divisors (see below), whose sum is σ = 6197248. Its totient is φ = 3088584.

The previous prime is 4640401. The next prime is 4640417. The reversal of 4640403 is 3040464.

4640403 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 4640403 - 2¹ = 4640401 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4640403.

It is not an unprimeable number, because it can be changed into a prime (4640401) 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, 2550 + ... + 3972.

It is an arithmetic number, because the mean of its divisors is an integer number (774656).

Almost surely, 2^4640403 is an apocalyptic number.

4640403 is a deficient number, since it is larger than the sum of its proper divisors (1556845).

4640403 is a wasteful number, since it uses less digits than its factorization.

4640403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2513.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 4640403 is about 2154.1594648493. The cubic root of 4640403 is about 166.7958469600.

Adding to 4640403 its reverse (3040464), we get a palindrome (7680867).

The spelling of 4640403 in words is "four million, six hundred forty thousand, four hundred three".