1228207941 has 40 divisors (see below), whose sum is σ = 1901121024. Its totient is φ = 789380640.

The previous prime is 1228207927. The next prime is 1228207943. The reversal of 1228207941 is 1497028221.

It is not a de Polignac number, because 1228207941 - 2⁵ = 1228207909 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1228207896 and 1228207905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1228207943) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 795216 + ... + 796758.

Almost surely, 2^1228207941 is an apocalyptic number.

It is an amenable number.

1228207941 is a deficient number, since it is larger than the sum of its proper divisors (672913083).

1228207941 is a wasteful number, since it uses less digits than its factorization.

1228207941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1903 (or 1894 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 1228207941 is about 35045.7977652100. The cubic root of 1228207941 is about 1070.9206682759.

The spelling of 1228207941 in words is "one billion, two hundred twenty-eight million, two hundred seven thousand, nine hundred forty-one".