1226578408 has 32 divisors (see below), whose sum is σ = 2617997760. Its totient is φ = 533294080.

The previous prime is 1226578391. The next prime is 1226578433. The reversal of 1226578408 is 8048756221.

It is a happy 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, 300985 + ... + 305032.

It is an arithmetic number, because the mean of its divisors is an integer number (81812430).

Almost surely, 2^1226578408 is an apocalyptic number.

It is an amenable number.

1226578408 is an abundant number, since it is smaller than the sum of its proper divisors (1391419352).

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

1226578408 is a wasteful number, since it uses less digits than its factorization.

1226578408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606057 (or 606053 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 43.

The square root of 1226578408 is about 35022.5414269153. The cubic root of 1226578408 is about 1070.4468416392.

The spelling of 1226578408 in words is "one billion, two hundred twenty-six million, five hundred seventy-eight thousand, four hundred eight".