734656320 has 168 divisors, whose sum is σ = 2575124136. Its totient is φ = 192172032.

The previous prime is 734656303. The next prime is 734656331. The reversal of 734656320 is 23656437.

734656320 is a `hidden beast` number, since 73 + 4 + 6 + 563 + 20 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 211527936 + 523128384 = 14544^2 + 22872^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 150234 + ... + 155046.

Almost surely, 2^734656320 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 734656320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1287562068).

734656320 is an abundant number, since it is smaller than the sum of its proper divisors (1840467816).

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

734656320 is a wasteful number, since it uses less digits than its factorization.

734656320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4889 (or 4876 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 36.

The square root of 734656320 is about 27104.5442684433. The cubic root of 734656320 is about 902.3217092935.

The spelling of 734656320 in words is "seven hundred thirty-four million, six hundred fifty-six thousand, three hundred twenty".