4573640 has 32 divisors (see below), whose sum is σ = 10395000. Its totient is φ = 1810944.

The previous prime is 4573637. The next prime is 4573649. The reversal of 4573640 is 463754.

It can be written as a sum of positive squares in 4 ways, for example, as 4502884 + 70756 = 2122^2 + 266^2 .

It is not an unprimeable number, because it can be changed into a prime (4573649) 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, 3836 + ... + 4884.

Almost surely, 2^4573640 is an apocalyptic number.

4573640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4573640 is an abundant number, since it is smaller than the sum of its proper divisors (5821360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4573640 is a wasteful number, since it uses less digits than its factorization.

4573640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1169 (or 1165 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 4573640 is about 2138.6070232747. The cubic root of 4573640 is about 165.9920642648.

The spelling of 4573640 in words is "four million, five hundred seventy-three thousand, six hundred forty".