1322406738 has 48 divisors (see below), whose sum is σ = 2916033120. Its totient is φ = 433021248.

The previous prime is 1322406731. The next prime is 1322406749. The reversal of 1322406738 is 8376042231.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1322406731) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 504006 + ... + 506622.

It is an arithmetic number, because the mean of its divisors is an integer number (60750690).

Almost surely, 2^1322406738 is an apocalyptic number.

1322406738 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1322406738 is an abundant number, since it is smaller than the sum of its proper divisors (1593626382).

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

1322406738 is a wasteful number, since it uses less digits than its factorization.

1322406738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3111 (or 3108 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 1322406738 is about 36364.9108069854. The cubic root of 1322406738 is about 1097.6275972395.

Adding to 1322406738 its reverse (8376042231), we get a palindrome (9698448969).

The spelling of 1322406738 in words is "one billion, three hundred twenty-two million, four hundred six thousand, seven hundred thirty-eight".