400626341 has 2 divisors, whose sum is σ = 400626342. Its totient is φ = 400626340.

The previous prime is 400626337. The next prime is 400626349. The reversal of 400626341 is 143626004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 255520225 + 145106116 = 15985^2 + 12046^2 .

It is a cyclic number.

It is not a de Polignac number, because 400626341 - 2² = 400626337 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 400626341.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400626349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200313170 + 200313171.

It is an arithmetic number, because the mean of its divisors is an integer number (200313171).

Almost surely, 2^400626341 is an apocalyptic number.

It is an amenable number.

400626341 is a deficient number, since it is larger than the sum of its proper divisors (1).

400626341 is an equidigital number, since it uses as much as digits as its factorization.

400626341 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 400626341 is about 20015.6524000593. The cubic root of 400626341 is about 737.1906758346.

The spelling of 400626341 in words is "four hundred million, six hundred twenty-six thousand, three hundred forty-one".