1228097904 has 40 divisors (see below), whose sum is σ = 3461004672. Its totient is φ = 372150720.

The previous prime is 1228097881. The next prime is 1228097911. The reversal of 1228097904 is 4097908221.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1162444 + ... + 1163499.

Almost surely, 2^1228097904 is an apocalyptic number.

It is an amenable number.

1228097904 is an abundant number, since it is smaller than the sum of its proper divisors (2232906768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1228097904 is a wasteful number, since it uses less digits than its factorization.

1228097904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2325965 (or 2325959 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 1228097904 is about 35044.2278271330. The cubic root of 1228097904 is about 1070.8886855220. Note that the first 3 decimals are identical.

The spelling of 1228097904 in words is "one billion, two hundred twenty-eight million, ninety-seven thousand, nine hundred four".