18190074 has 24 divisors (see below), whose sum is σ = 42320448. Its totient is φ = 5197080.

The previous prime is 18190063. The next prime is 18190093. The reversal of 18190074 is 47009181.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30642 + ... + 31229.

It is an arithmetic number, because the mean of its divisors is an integer number (1763352).

Almost surely, 2^18190074 is an apocalyptic number.

18190074 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18190074 is an abundant number, since it is smaller than the sum of its proper divisors (24130374).

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

18190074 is a wasteful number, since it uses less digits than its factorization.

18190074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61890 (or 61883 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 30.

The square root of 18190074 is about 4264.9822977358. The cubic root of 18190074 is about 262.9933831893.

The spelling of 18190074 in words is "eighteen million, one hundred ninety thousand, seventy-four".