18901030 has 8 divisors (see below), whose sum is σ = 34021872. Its totient is φ = 7560408.

The previous prime is 18901027. The next prime is 18901031. The reversal of 18901030 is 3010981.

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

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 18900992 and 18901010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18901031) 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, 945042 + ... + 945061.

It is an arithmetic number, because the mean of its divisors is an integer number (4252734).

Almost surely, 2^18901030 is an apocalyptic number.

18901030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18901030 is a deficient number, since it is larger than the sum of its proper divisors (15120842).

18901030 is a wasteful number, since it uses less digits than its factorization.

18901030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1890110.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 18901030 is about 4347.5314834973. The cubic root of 18901030 is about 266.3760392768.

The spelling of 18901030 in words is "eighteen million, nine hundred one thousand, thirty".