730704240 has 400 divisors, whose sum is σ = 2949186240. Its totient is φ = 164229120.

The previous prime is 730704229. The next prime is 730704241. The reversal of 730704240 is 42407037.

730704240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (730704241) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 4036950 + ... + 4037130.

Almost surely, 2^730704240 is an apocalyptic number.

730704240 is a gapful number since it is divisible by the number (70) 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 730704240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1474593120).

730704240 is an abundant number, since it is smaller than the sum of its proper divisors (2218482000).

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

730704240 is a wasteful number, since it uses less digits than its factorization.

730704240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302 (or 287 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 27.

The square root of 730704240 is about 27031.5415764621. The cubic root of 730704240 is about 900.7007875215.

The spelling of 730704240 in words is "seven hundred thirty million, seven hundred four thousand, two hundred forty".