1323412040 has 64 divisors (see below), whose sum is σ = 3013686000. Its totient is φ = 523005952.

The previous prime is 1323412033. The next prime is 1323412061. The reversal of 1323412040 is 402143231.

It can be written as a sum of positive squares in 8 ways, for example, as 112232836 + 1211179204 = 10594^2 + 34802^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1388204 + ... + 1389156.

Almost surely, 2^1323412040 is an apocalyptic number.

1323412040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1323412040 is an abundant number, since it is smaller than the sum of its proper divisors (1690273960).

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

1323412040 is a wasteful number, since it uses less digits than its factorization.

1323412040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1346 (or 1342 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1323412040 is about 36378.7305990740. The cubic root of 1323412040 is about 1097.9056679443.

Adding to 1323412040 its reverse (402143231), we get a palindrome (1725555271).

The spelling of 1323412040 in words is "one billion, three hundred twenty-three million, four hundred twelve thousand, forty".