1324004021 has 8 divisors (see below), whose sum is σ = 1357726104. Its totient is φ = 1290350080.

The previous prime is 1324004009. The next prime is 1324004027. The reversal of 1324004021 is 1204004231.

It can be written as a sum of positive squares in 4 ways, for example, as 376903396 + 947100625 = 19414^2 + 30775^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1324004021 - 2⁶ = 1324003957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1324004027) 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, 23531 + ... + 56583.

It is an arithmetic number, because the mean of its divisors is an integer number (169715763).

Almost surely, 2^1324004021 is an apocalyptic number.

It is an amenable number.

1324004021 is a deficient number, since it is larger than the sum of its proper divisors (33722083).

1324004021 is an equidigital number, since it uses as much as digits as its factorization.

1324004021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34071.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1324004021 is about 36386.8660508156. The cubic root of 1324004021 is about 1098.0693464739.

Adding to 1324004021 its reverse (1204004231), we get a palindrome (2528008252).

The spelling of 1324004021 in words is "one billion, three hundred twenty-four million, four thousand, twenty-one".