1405344064 has 28 divisors (see below), whose sum is σ = 2864105524. Its totient is φ = 683679744.

The previous prime is 1405344013. The next prime is 1405344067. The reversal of 1405344064 is 4604435041.

It can be written as a sum of positive squares in 2 ways, for example, as 1313337600 + 92006464 = 36240^2 + 9592^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1405344067) 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, 294369 + ... + 299104.

It is an arithmetic number, because the mean of its divisors is an integer number (102289483).

Almost surely, 2^1405344064 is an apocalyptic number.

It is an amenable number.

1405344064 is an abundant number, since it is smaller than the sum of its proper divisors (1458761460).

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

1405344064 is an equidigital number, since it uses as much as digits as its factorization.

1405344064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593522 (or 593512 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 31.

The square root of 1405344064 is about 37487.9189072960. The cubic root of 1405344064 is about 1120.1105503122.

The spelling of 1405344064 in words is "one billion, four hundred five million, three hundred forty-four thousand, sixty-four".