18671202 has 96 divisors (see below), whose sum is σ = 49066560. Its totient is φ = 5201280.

The previous prime is 18671201. The next prime is 18671227. The reversal of 18671202 is 20217681.

It is a super-2 number, since 2×18671202² = 697227568249608, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18671201) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 434193 + ... + 434235.

It is an arithmetic number, because the mean of its divisors is an integer number (511110).

Almost surely, 2^18671202 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18671202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24533280).

18671202 is an abundant number, since it is smaller than the sum of its proper divisors (30395358).

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

18671202 is a wasteful number, since it uses less digits than its factorization.

18671202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125 (or 76 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 18671202 is about 4321.0186299066. The cubic root of 18671202 is about 265.2919625377.

Adding to 18671202 its reverse (20217681), we get a palindrome (38888883).

The spelling of 18671202 in words is "eighteen million, six hundred seventy-one thousand, two hundred two".