626042845 has 8 divisors (see below), whose sum is σ = 753817176. Its totient is φ = 499123776.

The previous prime is 626042783. The next prime is 626042863. The reversal of 626042845 is 548240626.

It can be written as a sum of positive squares in 4 ways, for example, as 248945284 + 377097561 = 15778^2 + 19419^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 626042845 - 2⁷ = 626042717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212202 + ... + 215131.

It is an arithmetic number, because the mean of its divisors is an integer number (94227147).

Almost surely, 2^626042845 is an apocalyptic number.

It is an amenable number.

626042845 is a deficient number, since it is larger than the sum of its proper divisors (127774331).

626042845 is a wasteful number, since it uses less digits than its factorization.

626042845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427631.

The product of its (nonzero) digits is 92160, while the sum is 37.

The square root of 626042845 is about 25020.8482070453. The cubic root of 626042845 is about 855.4632397317.

The spelling of 626042845 in words is "six hundred twenty-six million, forty-two thousand, eight hundred forty-five".