730942740 has 144 divisors (see below), whose sum is σ = 2460144960. Its totient is φ = 174167040.

The previous prime is 730942717. The next prime is 730942781. The reversal of 730942740 is 47249037.

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

It is a junction number, because it is equal to n+sod(n) for n = 730942695 and 730942704.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 113692 + ... + 119948.

It is an arithmetic number, because the mean of its divisors is an integer number (17084340).

Almost surely, 2^730942740 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 730942740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1230072480).

730942740 is an abundant number, since it is smaller than the sum of its proper divisors (1729202220).

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

730942740 is a wasteful number, since it uses less digits than its factorization.

730942740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6342 (or 6337 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 730942740 is about 27035.9527296524. The cubic root of 730942740 is about 900.7987723415.

The spelling of 730942740 in words is "seven hundred thirty million, nine hundred forty-two thousand, seven hundred forty".