4643940 has 48 divisors (see below), whose sum is σ = 14861952. Its totient is φ = 1061376.

The previous prime is 4643939. The next prime is 4643959. The reversal of 4643940 is 493464.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 4643898 and 4643907.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 5109 + ... + 5948.

It is an arithmetic number, because the mean of its divisors is an integer number (309624).

Almost surely, 2^4643940 is an apocalyptic number.

It is an amenable number.

4643940 is an abundant number, since it is smaller than the sum of its proper divisors (10218012).

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

4643940 is a wasteful number, since it uses less digits than its factorization.

4643940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11076 (or 11074 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 4643940 is about 2154.9802783320. The cubic root of 4643940 is about 166.8382144786.

The spelling of 4643940 in words is "four million, six hundred forty-three thousand, nine hundred forty".