1227467904 has 128 divisors (see below), whose sum is σ = 3539954880. Its totient is φ = 374599680.

The previous prime is 1227467903. The next prime is 1227467921. The reversal of 1227467904 is 4097647221.

It is a tau number, because it is divible by the number of its divisors (128).

It is not an unprimeable number, because it can be changed into a prime (1227467903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 653014 + ... + 654890.

Almost surely, 2^1227467904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1227467904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1769977440).

1227467904 is an abundant number, since it is smaller than the sum of its proper divisors (2312486976).

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

1227467904 is a wasteful number, since it uses less digits than its factorization.

1227467904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2038 (or 2026 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 42.

The square root of 1227467904 is about 35035.2380325866. The cubic root of 1227467904 is about 1070.7055363700.

The spelling of 1227467904 in words is "one billion, two hundred twenty-seven million, four hundred sixty-seven thousand, nine hundred four".