3447465840 has 320 divisors, whose sum is σ = 14615731200. Its totient is φ = 727335936.

The previous prime is 3447465829. The next prime is 3447465841. The reversal of 3447465840 is 485647443.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3447465841) 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 63 ways as a sum of consecutive naturals, for example, 187791 + ... + 205329.

It is an arithmetic number, because the mean of its divisors is an integer number (45674160).

Almost surely, 2^3447465840 is an apocalyptic number.

3447465840 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3447465840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7307865600).

3447465840 is an abundant number, since it is smaller than the sum of its proper divisors (11168265360).

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

3447465840 is a wasteful number, since it uses less digits than its factorization.

3447465840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17581 (or 17569 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 45.

The square root of 3447465840 is about 58715.1244569915. The cubic root of 3447465840 is about 1510.6597470808.

The spelling of 3447465840 in words is "three billion, four hundred forty-seven million, four hundred sixty-five thousand, eight hundred forty".