10218938 has 8 divisors (see below), whose sum is σ = 16230132. Its totient is φ = 4808896.

The previous prime is 10218911. The next prime is 10218947. The reversal of 10218938 is 83981201.

It can be written as a sum of positive squares in 2 ways, for example, as 10004569 + 214369 = 3163^2 + 463^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150245 + ... + 150312.

Almost surely, 2^10218938 is an apocalyptic number.

10218938 is a deficient number, since it is larger than the sum of its proper divisors (6011194).

10218938 is a wasteful number, since it uses less digits than its factorization.

10218938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300576.

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 10218938 is about 3196.7073685278. The cubic root of 10218938 is about 217.0044241561.

The spelling of 10218938 in words is "ten million, two hundred eighteen thousand, nine hundred thirty-eight".