626000401 has 16 divisors (see below), whose sum is σ = 716932944. Its totient is φ = 541476864.

The previous prime is 626000387. The next prime is 626000449. The reversal of 626000401 is 104000626.

It is a Cunningham number, because it is equal to 25020²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 138650625 + 487349776 = 11775^2 + 22076^2 .

It is a cyclic number.

It is not a de Polignac number, because 626000401 - 2⁵ = 626000369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (626000801) 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, 45415 + ... + 57571.

It is an arithmetic number, because the mean of its divisors is an integer number (44808309).

Almost surely, 2^626000401 is an apocalyptic number.

It is an amenable number.

626000401 is a deficient number, since it is larger than the sum of its proper divisors (90932543).

626000401 is a wasteful number, since it uses less digits than its factorization.

626000401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12420.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 626000401 is about 25020.0000199840. Note that the first 4 decimals coincide. The cubic root of 626000401 is about 855.4439066021.

The spelling of 626000401 in words is "six hundred twenty-six million, four hundred one", and thus it is an aban number.