18472902 has 48 divisors (see below), whose sum is σ = 45253440. Its totient is φ = 4998672.

The previous prime is 18472877. The next prime is 18472957. The reversal of 18472902 is 20927481.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3933 + ... + 7239.

It is an arithmetic number, because the mean of its divisors is an integer number (942780).

Almost surely, 2^18472902 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18472902, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22626720).

18472902 is an abundant number, since it is smaller than the sum of its proper divisors (26780538).

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

18472902 is a wasteful number, since it uses less digits than its factorization.

18472902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3345 (or 3338 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 18472902 is about 4298.0114006363. The cubic root of 18472902 is about 264.3494282506.

The spelling of 18472902 in words is "eighteen million, four hundred seventy-two thousand, nine hundred two".