3120730 has 8 divisors (see below), whose sum is σ = 5617332. Its totient is φ = 1248288.

The previous prime is 3120727. The next prime is 3120757. The reversal of 3120730 is 370213.

It can be written as a sum of positive squares in 2 ways, for example, as 2752281 + 368449 = 1659^2 + 607^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156027 + ... + 156046.

Almost surely, 2^3120730 is an apocalyptic number.

3120730 is a deficient number, since it is larger than the sum of its proper divisors (2496602).

3120730 is a wasteful number, since it uses less digits than its factorization.

3120730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312080.

The product of its (nonzero) digits is 126, while the sum is 16.

The square root of 3120730 is about 1766.5588017386. The cubic root of 3120730 is about 146.1342669276.

Adding to 3120730 its reverse (370213), we get a palindrome (3490943).

The spelling of 3120730 in words is "three million, one hundred twenty thousand, seven hundred thirty".