18269000 has 32 divisors (see below), whose sum is σ = 42751800. Its totient is φ = 7307200.

The previous prime is 18268979. The next prime is 18269003. The reversal of 18269000 is 96281.

It can be written as a sum of positive squares in 4 ways, for example, as 7365796 + 10903204 = 2714^2 + 3302^2 .

It is a super-2 number, since 2×18269000² = 667512722000000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18269003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8135 + ... + 10134.

Almost surely, 2^18269000 is an apocalyptic number.

18269000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18269000 is an abundant number, since it is smaller than the sum of its proper divisors (24482800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18269000 is a wasteful number, since it uses less digits than its factorization.

18269000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18290 (or 18276 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 18269000 is about 4274.2250759641. The cubic root of 18269000 is about 263.3732069443.

The spelling of 18269000 in words is "eighteen million, two hundred sixty-nine thousand".