730041312 has 384 divisors, whose sum is σ = 2633637888. Its totient is φ = 170956800.

The previous prime is 730041287. The next prime is 730041371. The reversal of 730041312 is 213140037.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6822763 + ... + 6822869.

It is an arithmetic number, because the mean of its divisors is an integer number (6858432).

Almost surely, 2^730041312 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 730041312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1316818944).

730041312 is an abundant number, since it is smaller than the sum of its proper divisors (1903596576).

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

730041312 is a wasteful number, since it uses less digits than its factorization.

730041312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222 (or 214 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 730041312 is about 27019.2766742561. The cubic root of 730041312 is about 900.4283195826.

Adding to 730041312 its reverse (213140037), we get a palindrome (943181349).

The spelling of 730041312 in words is "seven hundred thirty million, forty-one thousand, three hundred twelve".