4640940 has 144 divisors (see below), whose sum is σ = 15724800. Its totient is φ = 1102464.

The previous prime is 4640929. The next prime is 4640953. The reversal of 4640940 is 490464.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 78631 + ... + 78689.

It is an arithmetic number, because the mean of its divisors is an integer number (109200).

Almost surely, 2^4640940 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4640940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7862400).

4640940 is an abundant number, since it is smaller than the sum of its proper divisors (11083860).

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

4640940 is a wasteful number, since it uses less digits than its factorization.

4640940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116 (or 111 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 4640940 is about 2154.2841038266. The cubic root of 4640940 is about 166.8022807341.

The spelling of 4640940 in words is "four million, six hundred forty thousand, nine hundred forty".