4039643934 has 16 divisors (see below), whose sum is σ = 8976986640. Its totient is φ = 1346547960.

The previous prime is 4039643929. The next prime is 4039643957. The reversal of 4039643934 is 4393469304.

It is a super-2 number, since 2×4039643934² = 32637446227005992712, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4039643934.

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, 37404057 + ... + 37404164.

It is an arithmetic number, because the mean of its divisors is an integer number (561061665).

Almost surely, 2^4039643934 is an apocalyptic number.

4039643934 is an abundant number, since it is smaller than the sum of its proper divisors (4937342706).

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

4039643934 is a wasteful number, since it uses less digits than its factorization.

4039643934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74808232 (or 74808226 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 45.

The square root of 4039643934 is about 63558.1932877265. The cubic root of 4039643934 is about 1592.6280567717.

The spelling of 4039643934 in words is "four billion, thirty-nine million, six hundred forty-three thousand, nine hundred thirty-four".