228942190 has 16 divisors (see below), whose sum is σ = 412785792. Its totient is φ = 91423584.

The previous prime is 228942173. The next prime is 228942193. The reversal of 228942190 is 91249822.

It is a super-2 number, since 2×228942190² = 104829052723992200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228942193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12789 + ... + 24928.

It is an arithmetic number, because the mean of its divisors is an integer number (25799112).

Almost surely, 2^228942190 is an apocalyptic number.

228942190 is a deficient number, since it is larger than the sum of its proper divisors (183843602).

228942190 is a wasteful number, since it uses less digits than its factorization.

228942190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38331.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 228942190 is about 15130.8357336930. The cubic root of 228942190 is about 611.7518306168.

The spelling of 228942190 in words is "two hundred twenty-eight million, nine hundred forty-two thousand, one hundred ninety".