228165480 has 48 divisors (see below), whose sum is σ = 741538980. Its totient is φ = 60844032.

The previous prime is 228165479. The next prime is 228165491. The reversal of 228165480 is 84561822.

228165480 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 226622916 + 1542564 = 15054^2 + 1242^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 316537 + ... + 317256.

Almost surely, 2^228165480 is an apocalyptic number.

228165480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228165480 is an abundant number, since it is smaller than the sum of its proper divisors (513373500).

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

228165480 is a wasteful number, since it uses less digits than its factorization.

228165480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633810 (or 633803 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 228165480 is about 15105.1474670061. The cubic root of 228165480 is about 611.0592363925.

The spelling of 228165480 in words is "two hundred twenty-eight million, one hundred sixty-five thousand, four hundred eighty".