4640032240 has 40 divisors (see below), whose sum is σ = 10795634928. Its totient is φ = 1854712320.

The previous prime is 4640032231. The next prime is 4640032247. The reversal of 4640032240 is 422300464.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4640032247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98899 + ... + 138061.

Almost surely, 2^4640032240 is an apocalyptic number.

4640032240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4640032240 is an abundant number, since it is smaller than the sum of its proper divisors (6155602688).

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

4640032240 is a wasteful number, since it uses less digits than its factorization.

4640032240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40657 (or 40651 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 4640032240 is about 68117.7821130430. The cubic root of 4640032240 is about 1667.9140461049.

The spelling of 4640032240 in words is "four billion, six hundred forty million, thirty-two thousand, two hundred forty".