18950480 has 20 divisors (see below), whose sum is σ = 44060052. Its totient is φ = 7580160.

The previous prime is 18950479. The next prime is 18950489. The reversal of 18950480 is 8405981.

It can be written as a sum of positive squares in 2 ways, for example, as 9265936 + 9684544 = 3044^2 + 3112^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 18950480.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18950489) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118361 + ... + 118520.

Almost surely, 2^18950480 is an apocalyptic number.

18950480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18950480 is an abundant number, since it is smaller than the sum of its proper divisors (25109572).

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

18950480 is a wasteful number, since it uses less digits than its factorization.

18950480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236894 (or 236888 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 18950480 is about 4353.2149039532. The cubic root of 18950480 is about 266.6081399335.

The spelling of 18950480 in words is "eighteen million, nine hundred fifty thousand, four hundred eighty".