18361476 has 72 divisors (see below), whose sum is σ = 54163200. Its totient is φ = 5242608.

The previous prime is 18361439. The next prime is 18361477. The reversal of 18361476 is 67416381.

18361476 is a `hidden beast` number, since 183 + 6 + 1 + 476 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 18361476.

It is not an unprimeable number, because it can be changed into a prime (18361477) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11605 + ... + 13091.

Almost surely, 2^18361476 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18361476, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27081600).

18361476 is an abundant number, since it is smaller than the sum of its proper divisors (35801724).

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

18361476 is a wasteful number, since it uses less digits than its factorization.

18361476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1518 (or 1499 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 18361476 is about 4285.0292881146. The cubic root of 18361476 is about 263.8168495525.

The spelling of 18361476 in words is "eighteen million, three hundred sixty-one thousand, four hundred seventy-six".