12045730 has 32 divisors (see below), whose sum is σ = 22777200. Its totient is φ = 4580352.

The previous prime is 12045727. The next prime is 12045743. The reversal of 12045730 is 3754021.

It can be written as a sum of positive squares in 8 ways, for example, as 3583449 + 8462281 = 1893^2 + 2909^2 .

It is a super-2 number, since 2×12045730² = 290199222465800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20886 + ... + 21454.

Almost surely, 2^12045730 is an apocalyptic number.

12045730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12045730 is a deficient number, since it is larger than the sum of its proper divisors (10731470).

12045730 is a wasteful number, since it uses less digits than its factorization.

12045730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 12045730 is about 3470.6958956382. The cubic root of 12045730 is about 229.2333008802.

Adding to 12045730 its reverse (3754021), we get a palindrome (15799751).

The spelling of 12045730 in words is "twelve million, forty-five thousand, seven hundred thirty".