401430473 has 2 divisors, whose sum is σ = 401430474. Its totient is φ = 401430472.

The previous prime is 401430451. The next prime is 401430487. The reversal of 401430473 is 374034104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 283989904 + 117440569 = 16852^2 + 10837^2 .

It is a cyclic number.

It is not a de Polignac number, because 401430473 - 2²⁴ = 384653257 is a prime.

It is a super-2 number, since 2×401430473² = 322292849306007458, which contains 22 as substring.

It is equal to p_21408272 and since 401430473 and 21408272 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (401430493) 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, 200715236 + 200715237.

It is an arithmetic number, because the mean of its divisors is an integer number (200715237).

Almost surely, 2^401430473 is an apocalyptic number.

It is an amenable number.

401430473 is a deficient number, since it is larger than the sum of its proper divisors (1).

401430473 is an equidigital number, since it uses as much as digits as its factorization.

401430473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 401430473 is about 20035.7299093395. The cubic root of 401430473 is about 737.6835727265.

Adding to 401430473 its reverse (374034104), we get a palindrome (775464577).

The spelling of 401430473 in words is "four hundred one million, four hundred thirty thousand, four hundred seventy-three".