2001500404 has 12 divisors (see below), whose sum is σ = 3528193284. Its totient is φ = 993445184.

The previous prime is 2001500387. The next prime is 2001500407. The reversal of 2001500404 is 4040051002.

It can be written as a sum of positive squares in 2 ways, for example, as 895804900 + 1105695504 = 29930^2 + 33252^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001500407) 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, 1825639 + ... + 1826734.

It is an arithmetic number, because the mean of its divisors is an integer number (294016107).

Almost surely, 2^2001500404 is an apocalyptic number.

It is an amenable number.

2001500404 is a deficient number, since it is larger than the sum of its proper divisors (1526692880).

2001500404 is a wasteful number, since it uses less digits than its factorization.

2001500404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3652514 (or 3652512 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 2001500404 is about 44738.1314316993. The cubic root of 2001500404 is about 1260.2360362374.

Adding to 2001500404 its reverse (4040051002), we get a palindrome (6041551406).

The spelling of 2001500404 in words is "two billion, one million, five hundred thousand, four hundred four".