252908738 has 4 divisors (see below), whose sum is σ = 379363110. Its totient is φ = 126454368.

The previous prime is 252908729. The next prime is 252908741. The reversal of 252908738 is 837809252.

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., 192737689 + 60171049 = 13883^2 + 7757^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63227183 + ... + 63227186.

Almost surely, 2^252908738 is an apocalyptic number.

252908738 is a deficient number, since it is larger than the sum of its proper divisors (126454372).

252908738 is a wasteful number, since it uses less digits than its factorization.

252908738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126454371.

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 252908738 is about 15903.1046654419. The cubic root of 252908738 is about 632.3942970938.

The spelling of 252908738 in words is "two hundred fifty-two million, nine hundred eight thousand, seven hundred thirty-eight".