252673730 has 8 divisors (see below), whose sum is σ = 454812732. Its totient is φ = 101069488.

The previous prime is 252673727. The next prime is 252673741. The reversal of 252673730 is 37376252.

It can be written as a sum of positive squares in 2 ways, for example, as 230948809 + 21724921 = 15197^2 + 4661^2 .

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

It is a super-2 number, since 2×252673730² = 127688027664225800, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12633677 + ... + 12633696.

Almost surely, 2^252673730 is an apocalyptic number.

252673730 is a deficient number, since it is larger than the sum of its proper divisors (202139002).

252673730 is a wasteful number, since it uses less digits than its factorization.

252673730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25267380.

The product of its (nonzero) digits is 52920, while the sum is 35.

The square root of 252673730 is about 15895.7142022622. The cubic root of 252673730 is about 632.1983584629.

The spelling of 252673730 in words is "two hundred fifty-two million, six hundred seventy-three thousand, seven hundred thirty".