190045228 has 24 divisors (see below), whose sum is σ = 347897088. Its totient is φ = 90666576.

The previous prime is 190045223. The next prime is 190045231. The reversal of 190045228 is 822540091.

It is a super-2 number, since 2×190045228² = 72234377371143968, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 190045228.

It is not an unprimeable number, because it can be changed into a prime (190045223) 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, 38425 + ... + 43087.

It is an arithmetic number, because the mean of its divisors is an integer number (14495712).

Almost surely, 2^190045228 is an apocalyptic number.

It is an amenable number.

190045228 is a deficient number, since it is larger than the sum of its proper divisors (157851860).

190045228 is a wasteful number, since it uses less digits than its factorization.

190045228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5133 (or 5131 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 190045228 is about 13785.6892464613. The cubic root of 190045228 is about 574.9353202609.

The spelling of 190045228 in words is "one hundred ninety million, forty-five thousand, two hundred twenty-eight".