228046520 has 32 divisors (see below), whose sum is σ = 552575520. Its totient is φ = 84201600.

The previous prime is 228046513. The next prime is 228046523. The reversal of 228046520 is 25640822.

It is a super-2 number, since 2×228046520² = 104010430568220800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228046523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 218756 + ... + 219795.

It is an arithmetic number, because the mean of its divisors is an integer number (17267985).

Almost surely, 2^228046520 is an apocalyptic number.

228046520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228046520 is an abundant number, since it is smaller than the sum of its proper divisors (324529000).

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

228046520 is a wasteful number, since it uses less digits than its factorization.

228046520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438575 (or 438571 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 228046520 is about 15101.2092231053. The cubic root of 228046520 is about 610.9530207289.

The spelling of 228046520 in words is "two hundred twenty-eight million, forty-six thousand, five hundred twenty".