730623760 has 20 divisors (see below), whose sum is σ = 1698700428. Its totient is φ = 292249472.

The previous prime is 730623757. The next prime is 730623769. The reversal of 730623760 is 67326037.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 277955584 + 452668176 = 16672^2 + 21276^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×730623760² = 1067622157353075200, which contains 22 as substring.

It is a zygodrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (730623769) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4566319 + ... + 4566478.

Almost surely, 2^730623760 is an apocalyptic number.

It is an amenable number.

730623760 is an abundant number, since it is smaller than the sum of its proper divisors (968076668).

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

730623760 is a wasteful number, since it uses less digits than its factorization.

730623760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9132810 (or 9132804 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 34.

The square root of 730623760 is about 27030.0529041288. The cubic root of 730623760 is about 900.6677184826.

Adding to 730623760 its reverse (67326037), we get a palindrome (797949797).

The spelling of 730623760 in words is "seven hundred thirty million, six hundred twenty-three thousand, seven hundred sixty".