2404021329 has 16 divisors (see below), whose sum is σ = 3628713600. Its totient is φ = 1572440688.

The previous prime is 2404021273. The next prime is 2404021393. The reversal of 2404021329 is 9231204042.

2404021329 is a `hidden beast` number, since 240 + 402 + 13 + 2 + 9 = 666.

It is not a de Polignac number, because 2404021329 - 2⁸ = 2404021073 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2404021129) 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, 838549 + ... + 841410.

It is an arithmetic number, because the mean of its divisors is an integer number (226794600).

Almost surely, 2^2404021329 is an apocalyptic number.

It is an amenable number.

2404021329 is a deficient number, since it is larger than the sum of its proper divisors (1224692271).

2404021329 is a wasteful number, since it uses less digits than its factorization.

2404021329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1680021 (or 1680015 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 2404021329 is about 49030.8201950569. The cubic root of 2404021329 is about 1339.6132634971.

It can be divided in two parts, 24040 and 21329, that added together give a square (45369 = 213²).

The spelling of 2404021329 in words is "two billion, four hundred four million, twenty-one thousand, three hundred twenty-nine".