18479950 has 48 divisors (see below), whose sum is σ = 35841456. Its totient is φ = 7084800.

The previous prime is 18479947. The next prime is 18479959. The reversal of 18479950 is 5997481.

It is a junction number, because it is equal to n+sod(n) for n = 18479897 and 18479906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18479959) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 222609 + ... + 222691.

It is an arithmetic number, because the mean of its divisors is an integer number (746697).

Almost surely, 2^18479950 is an apocalyptic number.

18479950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18479950 is a deficient number, since it is larger than the sum of its proper divisors (17361506).

18479950 is a wasteful number, since it uses less digits than its factorization.

18479950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229 (or 224 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 43.

The square root of 18479950 is about 4298.8312365107. The cubic root of 18479950 is about 264.3830432157.

The spelling of 18479950 in words is "eighteen million, four hundred seventy-nine thousand, nine hundred fifty".