228267420 has 24 divisors (see below), whose sum is σ = 639148944. Its totient is φ = 60871296.

The previous prime is 228267409. The next prime is 228267443. The reversal of 228267420 is 24762822.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1902169 + ... + 1902288.

It is an arithmetic number, because the mean of its divisors is an integer number (26631206).

Almost surely, 2^228267420 is an apocalyptic number.

228267420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228267420 is an abundant number, since it is smaller than the sum of its proper divisors (410881524).

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

228267420 is a wasteful number, since it uses less digits than its factorization.

228267420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3804469 (or 3804467 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 33.

The square root of 228267420 is about 15108.5214365933. The cubic root of 228267420 is about 611.1502260608.

The spelling of 228267420 in words is "two hundred twenty-eight million, two hundred sixty-seven thousand, four hundred twenty".