18045476 has 6 divisors (see below), whose sum is σ = 31579590. Its totient is φ = 9022736.

The previous prime is 18045473. The next prime is 18045491. The reversal of 18045476 is 67454081.

It can be written as a sum of positive squares in only one way, i.e., 14622976 + 3422500 = 3824^2 + 1850^2 .

It is not an unprimeable number, because it can be changed into a prime (18045473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2255681 + ... + 2255688.

It is an arithmetic number, because the mean of its divisors is an integer number (5263265).

Almost surely, 2^18045476 is an apocalyptic number.

It is an amenable number.

18045476 is a deficient number, since it is larger than the sum of its proper divisors (13534114).

18045476 is a wasteful number, since it uses less digits than its factorization.

18045476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4511373 (or 4511371 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 18045476 is about 4247.9967043302. The cubic root of 18045476 is about 262.2946590660.

The spelling of 18045476 in words is "eighteen million, forty-five thousand, four hundred seventy-six".