1228019924 has 24 divisors (see below), whose sum is σ = 2180707200. Its totient is φ = 604992960.

The previous prime is 1228019921. The next prime is 1228019959. The reversal of 1228019924 is 4299108221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1228019921) 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, 160907 + ... + 168365.

It is an arithmetic number, because the mean of its divisors is an integer number (90862800).

Almost surely, 2^1228019924 is an apocalyptic number.

It is an amenable number.

1228019924 is a deficient number, since it is larger than the sum of its proper divisors (952687276).

1228019924 is a wasteful number, since it uses less digits than its factorization.

1228019924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8063 (or 8061 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 1228019924 is about 35043.1152154029. The cubic root of 1228019924 is about 1070.8660191241.

The spelling of 1228019924 in words is "one billion, two hundred twenty-eight million, nineteen thousand, nine hundred twenty-four".