2004031320 has 32 divisors (see below), whose sum is σ = 6012094320. Its totient is φ = 534408320.

The previous prime is 2004031307. The next prime is 2004031321. The reversal of 2004031320 is 231304002.

It is a super-2 number, since 2×2004031320² = 8032283063081884800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 2004031320.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2004031321) 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, 8350011 + ... + 8350250.

Almost surely, 2^2004031320 is an apocalyptic number.

2004031320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2004031320 is an abundant number, since it is smaller than the sum of its proper divisors (4008063000).

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

2004031320 is a wasteful number, since it uses less digits than its factorization.

2004031320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16700275 (or 16700271 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 2004031320 is about 44766.4083884334. The cubic root of 2004031320 is about 1260.7670059171.

Adding to 2004031320 its reverse (231304002), we get a palindrome (2235335322).

It can be divided in two parts, 20040 and 31320, that added together give a triangular number (51360 = T₃₂₀).

The spelling of 2004031320 in words is "two billion, four million, thirty-one thousand, three hundred twenty".