1225423344 has 40 divisors (see below), whose sum is σ = 3194733520. Its totient is φ = 404725248.

The previous prime is 1225423337. The next prime is 1225423357. The reversal of 1225423344 is 4433245221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111877 + ... + 122340.

It is an arithmetic number, because the mean of its divisors is an integer number (79868338).

Almost surely, 2^1225423344 is an apocalyptic number.

It is an amenable number.

1225423344 is an abundant number, since it is smaller than the sum of its proper divisors (1969310176).

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

1225423344 is a wasteful number, since it uses less digits than its factorization.

1225423344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234337 (or 234331 counting only the distinct ones).

The product of its digits is 23040, while the sum is 30.

The square root of 1225423344 is about 35006.0472490111. The cubic root of 1225423344 is about 1070.1107242683.

Adding to 1225423344 its reverse (4433245221), we get a palindrome (5658668565).

The spelling of 1225423344 in words is "one billion, two hundred twenty-five million, four hundred twenty-three thousand, three hundred forty-four".