228048540 has 48 divisors (see below), whose sum is σ = 676099872. Its totient is φ = 57235456.

The previous prime is 228048539. The next prime is 228048551. The reversal of 228048540 is 45840822.

It is a happy number.

It is a super-2 number, since 2×228048540² = 104012273192263200, which contains 22 as substring.

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, 110769 + ... + 112808.

It is an arithmetic number, because the mean of its divisors is an integer number (14085414).

Almost surely, 2^228048540 is an apocalyptic number.

228048540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228048540 is an abundant number, since it is smaller than the sum of its proper divisors (448051332).

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

228048540 is a wasteful number, since it uses less digits than its factorization.

228048540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223606 (or 223604 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 33.

The square root of 228048540 is about 15101.2761050184. The cubic root of 228048540 is about 610.9548246320.

The spelling of 228048540 in words is "two hundred twenty-eight million, forty-eight thousand, five hundred forty".