1228073918 has 8 divisors (see below), whose sum is σ = 1876867848. Its totient is φ = 602451304.

The previous prime is 1228073909. The next prime is 1228073921. The reversal of 1228073918 is 8193708221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5792696 + ... + 5792907.

It is an arithmetic number, because the mean of its divisors is an integer number (234608481).

Almost surely, 2^1228073918 is an apocalyptic number.

1228073918 is a deficient number, since it is larger than the sum of its proper divisors (648793930).

1228073918 is a wasteful number, since it uses less digits than its factorization.

1228073918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11585658.

The product of its (nonzero) digits is 48384, while the sum is 41.

The square root of 1228073918 is about 35043.8856007721. The cubic root of 1228073918 is about 1070.8817136285.

The spelling of 1228073918 in words is "one billion, two hundred twenty-eight million, seventy-three thousand, nine hundred eighteen".