228140242 has 8 divisors (see below), whose sum is σ = 373320432. Its totient is φ = 103700100.

The previous prime is 228140219. The next prime is 228140251. The reversal of 228140242 is 242041822.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 5184984 + ... + 5185027.

It is an arithmetic number, because the mean of its divisors is an integer number (46665054).

Almost surely, 2^228140242 is an apocalyptic number.

228140242 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

228140242 is a deficient number, since it is larger than the sum of its proper divisors (145180190).

228140242 is a wasteful number, since it uses less digits than its factorization.

228140242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10370024.

The product of its (nonzero) digits is 2048, while the sum is 25.

The square root of 228140242 is about 15104.3120333235. The cubic root of 228140242 is about 611.0367052576.

The spelling of 228140242 in words is "two hundred twenty-eight million, one hundred forty thousand, two hundred forty-two".