4640545 has 48 divisors (see below), whose sum is σ = 7354368. Its totient is φ = 2782080.

The previous prime is 4640543. The next prime is 4640557. The reversal of 4640545 is 5450464.

It is not a de Polignac number, because 4640545 - 2¹ = 4640543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4640543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 98712 + ... + 98758.

It is an arithmetic number, because the mean of its divisors is an integer number (153216).

Almost surely, 2^4640545 is an apocalyptic number.

It is an amenable number.

4640545 is a deficient number, since it is larger than the sum of its proper divisors (2713823).

4640545 is a wasteful number, since it uses less digits than its factorization.

4640545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110 (or 103 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 4640545 is about 2154.1924240884. The cubic root of 4640545 is about 166.7975483042.

Multiplying 4640545 by its sum of digits (28), we get a triangular number (129935260 = T₁₆₁₂₀).

The spelling of 4640545 in words is "four million, six hundred forty thousand, five hundred forty-five".