18148430 has 8 divisors (see below), whose sum is σ = 32667192. Its totient is φ = 7259368.

The previous prime is 18148421. The next prime is 18148441. The reversal of 18148430 is 3484181.

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

It is a super-2 number, since 2×18148430² = 658731022929800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18148393 and 18148402.

It is a congruent number.

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, 907412 + ... + 907431.

It is an arithmetic number, because the mean of its divisors is an integer number (4083399).

Almost surely, 2^18148430 is an apocalyptic number.

18148430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18148430 is a deficient number, since it is larger than the sum of its proper divisors (14518762).

18148430 is a wasteful number, since it uses less digits than its factorization.

18148430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1814850.

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 18148430 is about 4260.0974167265. The cubic root of 18148430 is about 262.7925325324.

The spelling of 18148430 in words is "eighteen million, one hundred forty-eight thousand, four hundred thirty".