961840228 has 6 divisors (see below), whose sum is σ = 1683220406. Its totient is φ = 480920112.

The previous prime is 961840213. The next prime is 961840267. The reversal of 961840228 is 822048169.

It can be written as a sum of positive squares in only one way, i.e., 818989924 + 142850304 = 28618^2 + 11952^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120230025 + ... + 120230032.

Almost surely, 2^961840228 is an apocalyptic number.

It is an amenable number.

961840228 is a deficient number, since it is larger than the sum of its proper divisors (721380178).

961840228 is a wasteful number, since it uses less digits than its factorization.

961840228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240460061 (or 240460059 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 961840228 is about 31013.5491035773. The cubic root of 961840228 is about 987.1147596919.

The spelling of 961840228 in words is "nine hundred sixty-one million, eight hundred forty thousand, two hundred twenty-eight".