1226241398 has 16 divisors (see below), whose sum is σ = 1871851920. Its totient is φ = 602316000.

The previous prime is 1226241391. The next prime is 1226241409. The reversal of 1226241398 is 8931426221.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1226241391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98948 + ... + 110648.

It is an arithmetic number, because the mean of its divisors is an integer number (116990745).

Almost surely, 2^1226241398 is an apocalyptic number.

1226241398 is a deficient number, since it is larger than the sum of its proper divisors (645610522).

1226241398 is a wasteful number, since it uses less digits than its factorization.

1226241398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12623.

The product of its digits is 41472, while the sum is 38.

The square root of 1226241398 is about 35017.7297665054. The cubic root of 1226241398 is about 1070.3487953634.

The spelling of 1226241398 in words is "one billion, two hundred twenty-six million, two hundred forty-one thousand, three hundred ninety-eight".