2604663426 has 8 divisors (see below), whose sum is σ = 5209326864. Its totient is φ = 868221140.

The previous prime is 2604663419. The next prime is 2604663427. The reversal of 2604663426 is 6243664062.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

2604663426 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (2604663427) 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, 217055280 + ... + 217055291.

It is an arithmetic number, because the mean of its divisors is an integer number (651165858).

Almost surely, 2^2604663426 is an apocalyptic number.

2604663426 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2604663426 is a wasteful number, since it uses less digits than its factorization.

2604663426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434110576.

The product of its (nonzero) digits is 248832, while the sum is 39.

The square root of 2604663426 is about 51035.9033034588. The cubic root of 2604663426 is about 1375.8904955137.

The spelling of 2604663426 in words is "two billion, six hundred four million, six hundred sixty-three thousand, four hundred twenty-six".