10421818 has 8 divisors (see below), whose sum is σ = 17053920. Its totient is φ = 4737180.

The previous prime is 10421791. The next prime is 10421837. The reversal of 10421818 is 81812401.

10421818 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×10421818² = 217228580850248, which contains 22 as substring.

10421818 is a modest number, since divided by 1818 gives 1042 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 10421792 and 10421801.

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, 236838 + ... + 236881.

It is an arithmetic number, because the mean of its divisors is an integer number (2131740).

Almost surely, 2^10421818 is an apocalyptic number.

10421818 is a deficient number, since it is larger than the sum of its proper divisors (6632102).

10421818 is a wasteful number, since it uses less digits than its factorization.

10421818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473732.

The product of its (nonzero) digits is 512, while the sum is 25.

The square root of 10421818 is about 3228.2840643289. The cubic root of 10421818 is about 218.4311110846.

The spelling of 10421818 in words is "ten million, four hundred twenty-one thousand, eight hundred eighteen".