3905729344 has 28 divisors (see below), whose sum is σ = 8455017888. Its totient is φ = 1775331200.

The previous prime is 3905729341. The next prime is 3905729351. The reversal of 3905729344 is 4439275093.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 3905729294 and 3905729303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3905729341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2773252 + ... + 2774659.

Almost surely, 2^3905729344 is an apocalyptic number.

It is an amenable number.

3905729344 is an abundant number, since it is smaller than the sum of its proper divisors (4549288544).

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

3905729344 is a wasteful number, since it uses less digits than its factorization.

3905729344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5547934 (or 5547924 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 46.

The square root of 3905729344 is about 62495.8346131964. The cubic root of 3905729344 is about 1574.8313374778.

The spelling of 3905729344 in words is "three billion, nine hundred five million, seven hundred twenty-nine thousand, three hundred forty-four".