2628404429 has 4 divisors (see below), whose sum is σ = 3003890784. Its totient is φ = 2252918076.

The previous prime is 2628404413. The next prime is 2628404437. The reversal of 2628404429 is 9244048262.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2628404429 - 2⁴ = 2628404413 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 (2628404479) 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, 187743167 + ... + 187743180.

It is an arithmetic number, because the mean of its divisors is an integer number (750972696).

Almost surely, 2^2628404429 is an apocalyptic number.

It is an amenable number.

2628404429 is a deficient number, since it is larger than the sum of its proper divisors (375486355).

2628404429 is an equidigital number, since it uses as much as digits as its factorization.

2628404429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375486354.

The product of its (nonzero) digits is 221184, while the sum is 41.

The square root of 2628404429 is about 51267.9668896671. The cubic root of 2628404429 is about 1380.0581836772.

The spelling of 2628404429 in words is "two billion, six hundred twenty-eight million, four hundred four thousand, four hundred twenty-nine".