18148412 has 12 divisors (see below), whose sum is σ = 31800720. Its totient is φ = 9062496.

The previous prime is 18148411. The next prime is 18148421. The reversal of 18148412 is 21484181.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18148411) 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, 1208 + ... + 6144.

It is an arithmetic number, because the mean of its divisors is an integer number (2650060).

Almost surely, 2^18148412 is an apocalyptic number.

It is an amenable number.

18148412 is a deficient number, since it is larger than the sum of its proper divisors (13652308).

18148412 is a wasteful number, since it uses less digits than its factorization.

18148412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5860 (or 5858 counting only the distinct ones).

The product of its digits is 2048, while the sum is 29.

The square root of 18148412 is about 4260.0953040983. The cubic root of 18148412 is about 262.7924456513.

The spelling of 18148412 in words is "eighteen million, one hundred forty-eight thousand, four hundred twelve".