5120730 has 24 divisors (see below), whose sum is σ = 13314132. Its totient is φ = 1365504.

The previous prime is 5120729. The next prime is 5120737. The reversal of 5120730 is 370215.

5120730 = 1010² + 1011² + ... + 1014².

It can be written as a sum of positive squares in 2 ways, for example, as 4272489 + 848241 = 2067^2 + 921^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (5120737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28359 + ... + 28538.

Almost surely, 2^5120730 is an apocalyptic number.

5120730 is an abundant number, since it is smaller than the sum of its proper divisors (8193402).

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

5120730 is a wasteful number, since it uses less digits than its factorization.

5120730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56910 (or 56907 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 18.

The square root of 5120730 is about 2262.9030027820. The cubic root of 5120730 is about 172.3629661535.

Adding to 5120730 its reverse (370215), we get a palindrome (5490945).

The spelling of 5120730 in words is "five million, one hundred twenty thousand, seven hundred thirty".