228141240 has 32 divisors (see below), whose sum is σ = 684424080. Its totient is φ = 60837632.

The previous prime is 228141239. The next prime is 228141283. The reversal of 228141240 is 42141822.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 228141240.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 950469 + ... + 950708.

Almost surely, 2^228141240 is an apocalyptic number.

228141240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228141240 is an abundant number, since it is smaller than the sum of its proper divisors (456282840).

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

228141240 is a wasteful number, since it uses less digits than its factorization.

228141240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1901191 (or 1901187 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

The square root of 228141240 is about 15104.3450702108. The cubic root of 228141240 is about 611.0375962501.

The spelling of 228141240 in words is "two hundred twenty-eight million, one hundred forty-one thousand, two hundred forty".