1323262420 has 12 divisors (see below), whose sum is σ = 2778851124. Its totient is φ = 529304960.

The previous prime is 1323262399. The next prime is 1323262481. The reversal of 1323262420 is 242623231.

It can be written as a sum of positive squares in 2 ways, for example, as 880664976 + 442597444 = 29676^2 + 21038^2 .

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, 33081541 + ... + 33081580.

It is an arithmetic number, because the mean of its divisors is an integer number (231570927).

Almost surely, 2^1323262420 is an apocalyptic number.

1323262420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1323262420 is an abundant number, since it is smaller than the sum of its proper divisors (1455588704).

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

1323262420 is a wasteful number, since it uses less digits than its factorization.

1323262420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66163130 (or 66163128 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 1323262420 is about 36376.6741195508. The cubic root of 1323262420 is about 1097.8642913531.

Adding to 1323262420 its reverse (242623231), we get a palindrome (1565885651).

The spelling of 1323262420 in words is "one billion, three hundred twenty-three million, two hundred sixty-two thousand, four hundred twenty".