1961228 has 12 divisors (see below), whose sum is σ = 3463320. Its totient is φ = 971712.

The previous prime is 1961221. The next prime is 1961231. The reversal of 1961228 is 8221691.

It is a self number, because there is not a number n which added to its sum of digits gives 1961228.

It is not an unprimeable number, because it can be changed into a prime (1961221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1718 + ... + 2621.

It is an arithmetic number, because the mean of its divisors is an integer number (288610).

2^1961228 is an apocalyptic number.

It is an amenable number.

1961228 is a deficient number, since it is larger than the sum of its proper divisors (1502092).

1961228 is a wasteful number, since it uses less digits than its factorization.

1961228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4456 (or 4454 counting only the distinct ones).

The product of its digits is 1728, while the sum is 29.

The square root of 1961228 is about 1400.4385027555. The cubic root of 1961228 is about 125.1726254938.

The spelling of 1961228 in words is "one million, nine hundred sixty-one thousand, two hundred twenty-eight".