400530607 has 2 divisors, whose sum is σ = 400530608. Its totient is φ = 400530606.

The previous prime is 400530601. The next prime is 400530617. The reversal of 400530607 is 706035004.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 400530607 - 2⁷ = 400530479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400530601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200265303 + 200265304.

It is an arithmetic number, because the mean of its divisors is an integer number (200265304).

Almost surely, 2^400530607 is an apocalyptic number.

400530607 is a deficient number, since it is larger than the sum of its proper divisors (1).

400530607 is an equidigital number, since it uses as much as digits as its factorization.

400530607 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 400530607 is about 20013.2607787936. The cubic root of 400530607 is about 737.1319512599.

The spelling of 400530607 in words is "four hundred million, five hundred thirty thousand, six hundred seven".