18984051 has 20 divisors (see below), whose sum is σ = 28767024. Its totient is φ = 12474000.

The previous prime is 18984029. The next prime is 18984073. The reversal of 18984051 is 15048981.

It is an interprime number because it is at equal distance from previous prime (18984029) and next prime (18984073).

It is a de Polignac number, because none of the positive numbers 2^k-18984051 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18983997 and 18984015.

It is not an unprimeable number, because it can be changed into a prime (18984001) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4101 + ... + 7401.

Almost surely, 2^18984051 is an apocalyptic number.

18984051 is a deficient number, since it is larger than the sum of its proper divisors (9782973).

18984051 is an equidigital number, since it uses as much as digits as its factorization.

18984051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3384 (or 3375 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 36.

The square root of 18984051 is about 4357.0690836846. The cubic root of 18984051 is about 266.7654802203.

The spelling of 18984051 in words is "eighteen million, nine hundred eighty-four thousand, fifty-one".