10218958 has 4 divisors (see below), whose sum is σ = 15328440. Its totient is φ = 5109478.

The previous prime is 10218953. The next prime is 10219003. The reversal of 10218958 is 85981201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 85981201 = 29 ⋅2964869.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10218953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2554738 + ... + 2554741.

It is an arithmetic number, because the mean of its divisors is an integer number (3832110).

Almost surely, 2^10218958 is an apocalyptic number.

10218958 is a deficient number, since it is larger than the sum of its proper divisors (5109482).

10218958 is an equidigital number, since it uses as much as digits as its factorization.

10218958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5109481.

The product of its (nonzero) digits is 5760, while the sum is 34.

The square root of 10218958 is about 3196.7104967451. The cubic root of 10218958 is about 217.0045657261.

The spelling of 10218958 in words is "ten million, two hundred eighteen thousand, nine hundred fifty-eight".