18952938 has 48 divisors (see below), whose sum is σ = 42996096. Its totient is φ = 6027840.

The previous prime is 18952931. The next prime is 18952951. The reversal of 18952938 is 83925981.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 18952893 and 18952902.

It is not an unprimeable number, because it can be changed into a prime (18952931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36118 + ... + 36638.

It is an arithmetic number, because the mean of its divisors is an integer number (895752).

Almost surely, 2^18952938 is an apocalyptic number.

18952938 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

18952938 is an abundant number, since it is smaller than the sum of its proper divisors (24043158).

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

18952938 is a wasteful number, since it uses less digits than its factorization.

18952938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619 (or 616 counting only the distinct ones).

The product of its digits is 155520, while the sum is 45.

The square root of 18952938 is about 4353.4972148837. The cubic root of 18952938 is about 266.6196663694.

The spelling of 18952938 in words is "eighteen million, nine hundred fifty-two thousand, nine hundred thirty-eight".