252704026 has 4 divisors (see below), whose sum is σ = 379056042. Its totient is φ = 126352012.

The previous prime is 252703973. The next prime is 252704071. The reversal of 252704026 is 620407252.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 162435025 + 90269001 = 12745^2 + 9501^2 .

It is a junction number, because it is equal to n+sod(n) for n = 252703985 and 252704003.

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 as a sum of consecutive naturals, namely, 63176005 + ... + 63176008.

Almost surely, 2^252704026 is an apocalyptic number.

252704026 is a deficient number, since it is larger than the sum of its proper divisors (126352016).

252704026 is a wasteful number, since it uses less digits than its factorization.

252704026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126352015.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 252704026 is about 15896.6671349689. The cubic root of 252704026 is about 632.2236246642.

The spelling of 252704026 in words is "two hundred fifty-two million, seven hundred four thousand, twenty-six".