1219404064 has 48 divisors (see below), whose sum is σ = 2591507520. Its totient is φ = 563073280.

The previous prime is 1219404029. The next prime is 1219404071. The reversal of 1219404064 is 4604049121.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 7222 + ... + 49909.

It is an arithmetic number, because the mean of its divisors is an integer number (53989740).

Almost surely, 2^1219404064 is an apocalyptic number.

It is an amenable number.

1219404064 is an abundant number, since it is smaller than the sum of its proper divisors (1372103456).

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

1219404064 is a wasteful number, since it uses less digits than its factorization.

1219404064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57193 (or 57185 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 1219404064 is about 34919.9665521031. The cubic root of 1219404064 is about 1068.3557194812.

The spelling of 1219404064 in words is "one billion, two hundred nineteen million, four hundred four thousand, sixty-four".