4043942464 has 21 divisors (see below), whose sum is σ = 8025707977. Its totient is φ = 2021716864.

The previous prime is 4043942459. The next prime is 4043942477. The reversal of 4043942464 is 4642493404.

The square root of 4043942464 is 63592.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1935296064 + 2108646400 = 43992^2 + 45920^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 504762 + ... + 512710.

Almost surely, 2^4043942464 is an apocalyptic number.

4043942464 is the 63592-nd square number.

It is an amenable number.

4043942464 is a deficient number, since it is larger than the sum of its proper divisors (3981765513).

4043942464 is an frugal number, since it uses more digits than its factorization.

4043942464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15910 (or 7951 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 40.

The cubic root of 4043942464 is about 1593.1927544527.

The spelling of 4043942464 in words is "four billion, forty-three million, nine hundred forty-two thousand, four hundred sixty-four".