1222403406 has 16 divisors (see below), whose sum is σ = 2794065024. Its totient is φ = 349258104.

The previous prime is 1222403393. The next prime is 1222403407. The reversal of 1222403406 is 6043042221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222403407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14552380 + ... + 14552463.

It is an arithmetic number, because the mean of its divisors is an integer number (174629064).

Almost surely, 2^1222403406 is an apocalyptic number.

1222403406 is an abundant number, since it is smaller than the sum of its proper divisors (1571661618).

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

1222403406 is a wasteful number, since it uses less digits than its factorization.

1222403406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29104855.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 1222403406 is about 34962.8861222869. The cubic root of 1222403406 is about 1069.2309394961.

Adding to 1222403406 its reverse (6043042221), we get a palindrome (7265445627).

It can be divided in two parts, 122 and 2403406, that added together give a triangular number (2403528 = T₂₁₉₂).

The spelling of 1222403406 in words is "one billion, two hundred twenty-two million, four hundred three thousand, four hundred six".