1324400004 has 48 divisors (see below), whose sum is σ = 3435868800. Its totient is φ = 441178848.

The previous prime is 1324399931. The next prime is 1324400009. The reversal of 1324400004 is 4000044231.

It is a super-3 number, since 3×1324400004³ (a number of 28 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a self number, because there is not a number n which added to its sum of digits gives 1324400004.

It is not an unprimeable number, because it can be changed into a prime (1324400009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 220489 + ... + 226415.

It is an arithmetic number, because the mean of its divisors is an integer number (71580600).

Almost surely, 2^1324400004 is an apocalyptic number.

It is an amenable number.

1324400004 is an abundant number, since it is smaller than the sum of its proper divisors (2111468796).

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

1324400004 is a wasteful number, since it uses less digits than its factorization.

1324400004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8009 (or 8001 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 1324400004 is about 36392.3069342959. The cubic root of 1324400004 is about 1098.1788057218.

Adding to 1324400004 its reverse (4000044231), we get a palindrome (5324444235).

The spelling of 1324400004 in words is "one billion, three hundred twenty-four million, four hundred thousand, four".