730640450 has 24 divisors (see below), whose sum is σ = 1438933572. Its totient is φ = 275064320.

The previous prime is 730640411. The next prime is 730640479. The reversal of 730640450 is 54046037.

It can be written as a sum of positive squares in 6 ways, for example, as 165199609 + 565440841 = 12853^2 + 23779^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 428939 + ... + 430638.

Almost surely, 2^730640450 is an apocalyptic number.

730640450 is a deficient number, since it is larger than the sum of its proper divisors (708293122).

730640450 is a wasteful number, since it uses less digits than its factorization.

730640450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 859606 (or 859601 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 730640450 is about 27030.3616328010. The cubic root of 730640450 is about 900.6745765632.

Adding to 730640450 its reverse (54046037), we get a palindrome (784686487).

The spelling of 730640450 in words is "seven hundred thirty million, six hundred forty thousand, four hundred fifty".