1403320064 has 36 divisors (see below), whose sum is σ = 2826913320. Its totient is φ = 695208960.

The previous prime is 1403320057. The next prime is 1403320081. The reversal of 1403320064 is 4600233041.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2759 + ... + 53049.

It is an arithmetic number, because the mean of its divisors is an integer number (78525370).

Almost surely, 2^1403320064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1403320064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1413456660).

1403320064 is an abundant number, since it is smaller than the sum of its proper divisors (1423593256).

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

1403320064 is an equidigital number, since it uses as much as digits as its factorization.

1403320064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50416 (or 50402 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 1403320064 is about 37460.9138169372. The cubic root of 1403320064 is about 1119.5725579782.

The spelling of 1403320064 in words is "one billion, four hundred three million, three hundred twenty thousand, sixty-four".