405428201 has 2 divisors, whose sum is σ = 405428202. Its totient is φ = 405428200.

The previous prime is 405428141. The next prime is 405428249. The reversal of 405428201 is 102824504.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 402042601 + 3385600 = 20051^2 + 1840^2 .

It is a cyclic number.

It is not a de Polignac number, because 405428201 - 2¹⁴ = 405411817 is a prime.

It is not a weakly prime, because it can be changed into another prime (405428501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202714100 + 202714101.

It is an arithmetic number, because the mean of its divisors is an integer number (202714101).

Almost surely, 2^405428201 is an apocalyptic number.

It is an amenable number.

405428201 is a deficient number, since it is larger than the sum of its proper divisors (1).

405428201 is an equidigital number, since it uses as much as digits as its factorization.

405428201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2560, while the sum is 26.

The square root of 405428201 is about 20135.2477263132. The cubic root of 405428201 is about 740.1242797110.

The spelling of 405428201 in words is "four hundred five million, four hundred twenty-eight thousand, two hundred one".