18094477 has 8 divisors (see below), whose sum is σ = 19358136. Its totient is φ = 16852992.

The previous prime is 18094457. The next prime is 18094499. The reversal of 18094477 is 77449081.

It can be written as a sum of positive squares in 4 ways, for example, as 4888521 + 13205956 = 2211^2 + 3634^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18094477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18094457) 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, 3838 + ... + 7135.

It is an arithmetic number, because the mean of its divisors is an integer number (2419767).

Almost surely, 2^18094477 is an apocalyptic number.

18094477 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

18094477 is a deficient number, since it is larger than the sum of its proper divisors (1263659).

18094477 is a wasteful number, since it uses less digits than its factorization.

18094477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11087.

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 18094477 is about 4253.7603364553. The cubic root of 18094477 is about 262.5318576604.

The spelling of 18094477 in words is "eighteen million, ninety-four thousand, four hundred seventy-seven".