1245222408 has 32 divisors (see below), whose sum is σ = 3127822560. Its totient is φ = 413105280.

The previous prime is 1245222397. The next prime is 1245222413. The reversal of 1245222408 is 8042225421.

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, 117885 + ... + 128012.

It is an arithmetic number, because the mean of its divisors is an integer number (97744455).

Almost surely, 2^1245222408 is an apocalyptic number.

It is an amenable number.

1245222408 is an abundant number, since it is smaller than the sum of its proper divisors (1882600152).

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

1245222408 is a wasteful number, since it uses less digits than its factorization.

1245222408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246117 (or 246113 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 30.

The square root of 1245222408 is about 35287.7090216976. The cubic root of 1245222408 is about 1075.8431914956.

Adding to 1245222408 its reverse (8042225421), we get a palindrome (9287447829).

The spelling of 1245222408 in words is "one billion, two hundred forty-five million, two hundred twenty-two thousand, four hundred eight".