4640245 has 8 divisors (see below), whose sum is σ = 5645016. Its totient is φ = 3661056.

The previous prime is 4640231. The next prime is 4640249. The reversal of 4640245 is 5420464.

It can be written as a sum of positive squares in 4 ways, for example, as 1623076 + 3017169 = 1274^2 + 1737^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 4640245 - 2⁵ = 4640213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4640249) 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, 5992 + ... + 6721.

It is an arithmetic number, because the mean of its divisors is an integer number (705627).

Almost surely, 2^4640245 is an apocalyptic number.

It is an amenable number.

4640245 is a deficient number, since it is larger than the sum of its proper divisors (1004771).

4640245 is a wasteful number, since it uses less digits than its factorization.

4640245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12791.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 4640245 is about 2154.1227913004. The cubic root of 4640245 is about 166.7939538742.

The spelling of 4640245 in words is "four million, six hundred forty thousand, two hundred forty-five".