18428202 has 32 divisors (see below), whose sum is σ = 44103360. Its totient is φ = 5670000.

The previous prime is 18428197. The next prime is 18428213. The reversal of 18428202 is 20282481.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12424 + ... + 13827.

It is an arithmetic number, because the mean of its divisors is an integer number (1378230).

Almost surely, 2^18428202 is an apocalyptic number.

18428202 is an abundant number, since it is smaller than the sum of its proper divisors (25675158).

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

18428202 is a wasteful number, since it uses less digits than its factorization.

18428202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26275 (or 26269 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 27.

The square root of 18428202 is about 4292.8081718148. The cubic root of 18428202 is about 264.1360352629.

The spelling of 18428202 in words is "eighteen million, four hundred twenty-eight thousand, two hundred two".