18950880 has 96 divisors (see below), whose sum is σ = 64308384. Its totient is φ = 4663296.

The previous prime is 18950879. The next prime is 18950927. The reversal of 18950880 is 8805981.

It is a tau number, because it is divible by the number of its divisors (96).

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

It is a congruent number.

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, 4722 + ... + 7758.

It is an arithmetic number, because the mean of its divisors is an integer number (669879).

Almost surely, 2^18950880 is an apocalyptic number.

18950880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18950880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32154192).

18950880 is an abundant number, since it is smaller than the sum of its proper divisors (45357504).

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

18950880 is a wasteful number, since it uses less digits than its factorization.

18950880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3068 (or 3060 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 39.

The square root of 18950880 is about 4353.2608467676. The cubic root of 18950880 is about 266.6100157437.

The spelling of 18950880 in words is "eighteen million, nine hundred fifty thousand, eight hundred eighty".