18401026 has 8 divisors (see below), whose sum is σ = 31544640. Its totient is φ = 7886148.

The previous prime is 18401023. The next prime is 18401027. The reversal of 18401026 is 62010481.

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

It is a junction number, because it is equal to n+sod(n) for n = 18400988 and 18401006.

It is not an unprimeable number, because it can be changed into a prime (18401023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 657166 + ... + 657193.

It is an arithmetic number, because the mean of its divisors is an integer number (3943080).

Almost surely, 2^18401026 is an apocalyptic number.

18401026 is a deficient number, since it is larger than the sum of its proper divisors (13143614).

18401026 is a wasteful number, since it uses less digits than its factorization.

18401026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1314368.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 18401026 is about 4289.6417099800. The cubic root of 18401026 is about 264.0061312473.

The spelling of 18401026 in words is "eighteen million, four hundred one thousand, twenty-six".