252861838 has 4 divisors (see below), whose sum is σ = 379292760. Its totient is φ = 126430918.

The previous prime is 252861821. The next prime is 252861871. The reversal of 252861838 is 838168252.

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

It is a junction number, because it is equal to n+sod(n) for n = 252861794 and 252861803.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63215458 + ... + 63215461.

It is an arithmetic number, because the mean of its divisors is an integer number (94823190).

Almost surely, 2^252861838 is an apocalyptic number.

252861838 is a deficient number, since it is larger than the sum of its proper divisors (126430922).

252861838 is a wasteful number, since it uses less digits than its factorization.

252861838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126430921.

The product of its digits is 184320, while the sum is 43.

The square root of 252861838 is about 15901.6300422315. The cubic root of 252861838 is about 632.3552037746.

The spelling of 252861838 in words is "two hundred fifty-two million, eight hundred sixty-one thousand, eight hundred thirty-eight".