18448950 has 48 divisors (see below), whose sum is σ = 49278096. Its totient is φ = 4540800.

The previous prime is 18448939. The next prime is 18448951. The reversal of 18448950 is 5984481.

It is a super-2 number, since 2×18448950² = 680727512205000, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 18448899 and 18448908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18448951) 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, 2781 + ... + 6680.

It is an arithmetic number, because the mean of its divisors is an integer number (1026627).

Almost surely, 2^18448950 is an apocalyptic number.

18448950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18448950 is an abundant number, since it is smaller than the sum of its proper divisors (30829146).

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

18448950 is a wasteful number, since it uses less digits than its factorization.

18448950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9489 (or 9484 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 39.

The square root of 18448950 is about 4295.2240919421. The cubic root of 18448950 is about 264.2351268441.

The spelling of 18448950 in words is "eighteen million, four hundred forty-eight thousand, nine hundred fifty".