3427449720 has 32 divisors (see below), whose sum is σ = 10282349520. Its totient is φ = 913986560.

The previous prime is 3427449569. The next prime is 3427449721. The reversal of 3427449720 is 279447243.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3427449721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14280921 + ... + 14281160.

Almost surely, 2^3427449720 is an apocalyptic number.

3427449720 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3427449720 is an abundant number, since it is smaller than the sum of its proper divisors (6854899800).

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

3427449720 is a wasteful number, since it uses less digits than its factorization.

3427449720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28562095 (or 28562091 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 42.

The square root of 3427449720 is about 58544.4251829327. The cubic root of 3427449720 is about 1507.7304208453.

The spelling of 3427449720 in words is "three billion, four hundred twenty-seven million, four hundred forty-nine thousand, seven hundred twenty".