1323042040 has 16 divisors (see below), whose sum is σ = 2976844680. Its totient is φ = 529216800.

The previous prime is 1323042023. The next prime is 1323042047. The reversal of 1323042040 is 402403231.

It is a junction number, because it is equal to n+sod(n) for n = 1323041999 and 1323042017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323042047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16537986 + ... + 16538065.

Almost surely, 2^1323042040 is an apocalyptic number.

1323042040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1323042040 is an abundant number, since it is smaller than the sum of its proper divisors (1653802640).

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

1323042040 is a wasteful number, since it uses less digits than its factorization.

1323042040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33076062 (or 33076058 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 1323042040 is about 36373.6448544822. The cubic root of 1323042040 is about 1097.8033407909.

Adding to 1323042040 its reverse (402403231), we get a palindrome (1725445271).

The spelling of 1323042040 in words is "one billion, three hundred twenty-three million, forty-two thousand, forty".