730622345 has 24 divisors (see below), whose sum is σ = 934343448. Its totient is φ = 548352000.

The previous prime is 730622341. The next prime is 730622351. The reversal of 730622345 is 543226037.

It can be written as a sum of positive squares in 12 ways, for example, as 447407104 + 283215241 = 21152^2 + 16829^2 .

It is not a de Polignac number, because 730622345 - 2² = 730622341 is a prime.

It is a super-2 number, since 2×730622345² = 1067618022026598050, which contains 22 as substring.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (730622341) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 607745 + ... + 608945.

It is an arithmetic number, because the mean of its divisors is an integer number (38930977).

Almost surely, 2^730622345 is an apocalyptic number.

It is an amenable number.

730622345 is a deficient number, since it is larger than the sum of its proper divisors (203721103).

730622345 is a wasteful number, since it uses less digits than its factorization.

730622345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1661 (or 1644 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 32.

The square root of 730622345 is about 27030.0267295465. The cubic root of 730622345 is about 900.6671370408.

The spelling of 730622345 in words is "seven hundred thirty million, six hundred twenty-two thousand, three hundred forty-five".