283194128 has 30 divisors (see below), whose sum is σ = 638272206. Its totient is φ = 121368576.

The previous prime is 283194113. The next prime is 283194137. The reversal of 283194128 is 821491382.

It can be written as a sum of positive squares in only one way, i.e., 283181584 + 12544 = 16828^2 + 112^2 .

It is a junction number, because it is equal to n+sod(n) for n = 283194091 and 283194100.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 179825 + ... + 181392.

Almost surely, 2^283194128 is an apocalyptic number.

283194128 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

283194128 is an abundant number, since it is smaller than the sum of its proper divisors (355078078).

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

283194128 is a wasteful number, since it uses less digits than its factorization.

283194128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361239 (or 361226 counting only the distinct ones).

The product of its digits is 27648, while the sum is 38.

The square root of 283194128 is about 16828.3727080190. The cubic root of 283194128 is about 656.6915298318.

The spelling of 283194128 in words is "two hundred eighty-three million, one hundred ninety-four thousand, one hundred twenty-eight".