18950272 has 64 divisors (see below), whose sum is σ = 42276960. Its totient is φ = 8386560.

The previous prime is 18950237. The next prime is 18950273. The reversal of 18950272 is 27205981.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×18950272² = 718225617747968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18950273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60388 + ... + 60700.

Almost surely, 2^18950272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18950272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21138480).

18950272 is an abundant number, since it is smaller than the sum of its proper divisors (23326688).

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

18950272 is a wasteful number, since it uses less digits than its factorization.

18950272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381 (or 369 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 18950272 is about 4353.1910134980. The cubic root of 18950272 is about 266.6071645019.

The spelling of 18950272 in words is "eighteen million, nine hundred fifty thousand, two hundred seventy-two".