3449727920 has 40 divisors (see below), whose sum is σ = 8094221520. Its totient is φ = 1367228160.

The previous prime is 3449727877. The next prime is 3449727923. The reversal of 3449727920 is 297279443.

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

It is not an unprimeable number, because it can be changed into a prime (3449727923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189086 + ... + 206525.

It is an arithmetic number, because the mean of its divisors is an integer number (202355538).

Almost surely, 2^3449727920 is an apocalyptic number.

It is an amenable number.

3449727920 is an abundant number, since it is smaller than the sum of its proper divisors (4644493600).

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

3449727920 is a wasteful number, since it uses less digits than its factorization.

3449727920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395733 (or 395727 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 47.

The square root of 3449727920 is about 58734.3844779189. The cubic root of 3449727920 is about 1510.9900849983.

The spelling of 3449727920 in words is "three billion, four hundred forty-nine million, seven hundred twenty-seven thousand, nine hundred twenty".