4640745 has 16 divisors (see below), whose sum is σ = 7862400. Its totient is φ = 2329344.

The previous prime is 4640737. The next prime is 4640747. The reversal of 4640745 is 5470464.

It is not a de Polignac number, because 4640745 - 2³ = 4640737 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4640747) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8845 + ... + 9354.

It is an arithmetic number, because the mean of its divisors is an integer number (491400).

Almost surely, 2^4640745 is an apocalyptic number.

It is an amenable number.

4640745 is a deficient number, since it is larger than the sum of its proper divisors (3221655).

4640745 is a wasteful number, since it uses less digits than its factorization.

4640745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18224.

The product of its (nonzero) digits is 13440, while the sum is 30.

The square root of 4640745 is about 2154.2388446967. The cubic root of 4640745 is about 166.7999445048.

The spelling of 4640745 in words is "four million, six hundred forty thousand, seven hundred forty-five".