4579640 has 32 divisors (see below), whose sum is σ = 11098080. Its totient is φ = 1690752.

The previous prime is 4579637. The next prime is 4579657. The reversal of 4579640 is 469754.

It is a self number, because there is not a number n which added to its sum of digits gives 4579640.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3884 + ... + 4923.

It is an arithmetic number, because the mean of its divisors is an integer number (346815).

Almost surely, 2^4579640 is an apocalyptic number.

4579640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4579640 is an abundant number, since it is smaller than the sum of its proper divisors (6518440).

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

4579640 is a wasteful number, since it uses less digits than its factorization.

4579640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8831 (or 8827 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 4579640 is about 2140.0093457740. The cubic root of 4579640 is about 166.0646189611.

The spelling of 4579640 in words is "four million, five hundred seventy-nine thousand, six hundred forty".