400526227 has 2 divisors, whose sum is σ = 400526228. Its totient is φ = 400526226.

The previous prime is 400526207. The next prime is 400526249. The reversal of 400526227 is 722625004.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-400526227 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 400526195 and 400526204.

It is not a weakly prime, because it can be changed into another prime (400526207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200263113 + 200263114.

It is an arithmetic number, because the mean of its divisors is an integer number (200263114).

Almost surely, 2^400526227 is an apocalyptic number.

400526227 is a deficient number, since it is larger than the sum of its proper divisors (1).

400526227 is an equidigital number, since it uses as much as digits as its factorization.

400526227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 400526227 is about 20013.1513510491. The cubic root of 400526227 is about 737.1292642828.

The spelling of 400526227 in words is "four hundred million, five hundred twenty-six thousand, two hundred twenty-seven".