1223010428 has 12 divisors (see below), whose sum is σ = 2160271512. Its totient is φ = 605790000.

The previous prime is 1223010401. The next prime is 1223010431. The reversal of 1223010428 is 8240103221.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1428323 + ... + 1429178.

It is an arithmetic number, because the mean of its divisors is an integer number (180022626).

Almost surely, 2^1223010428 is an apocalyptic number.

It is an amenable number.

1223010428 is a deficient number, since it is larger than the sum of its proper divisors (937261084).

1223010428 is a wasteful number, since it uses less digits than its factorization.

1223010428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2857612 (or 2857610 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 1223010428 is about 34971.5659929606. The cubic root of 1223010428 is about 1069.4078967087.

Adding to 1223010428 its reverse (8240103221), we get a palindrome (9463113649).

The spelling of 1223010428 in words is "one billion, two hundred twenty-three million, ten thousand, four hundred twenty-eight".