180228471 has 16 divisors (see below), whose sum is σ = 255801600. Its totient is φ = 112546368.

The previous prime is 180228469. The next prime is 180228479. The reversal of 180228471 is 174822081.

It is a happy number.

It is not a de Polignac number, because 180228471 - 2¹ = 180228469 is a prime.

It is a super-3 number, since 3×180228471³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180228479) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12691 + ... + 22836.

It is an arithmetic number, because the mean of its divisors is an integer number (15987600).

Almost surely, 2^180228471 is an apocalyptic number.

180228471 is a deficient number, since it is larger than the sum of its proper divisors (75573129).

180228471 is a wasteful number, since it uses less digits than its factorization.

180228471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35638.

The product of its (nonzero) digits is 7168, while the sum is 33.

The square root of 180228471 is about 13424.9197762966. The cubic root of 180228471 is about 564.8604045970.

The spelling of 180228471 in words is "one hundred eighty million, two hundred twenty-eight thousand, four hundred seventy-one".