401470409 has 2 divisors, whose sum is σ = 401470410. Its totient is φ = 401470408.

The previous prime is 401470393. The next prime is 401470427. The reversal of 401470409 is 904074104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 258309184 + 143161225 = 16072^2 + 11965^2 .

It is a cyclic number.

It is not a de Polignac number, because 401470409 - 2⁴ = 401470393 is a prime.

It is a super-2 number, since 2×401470409² = 322356978605254562, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (401470469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200735204 + 200735205.

It is an arithmetic number, because the mean of its divisors is an integer number (200735205).

Almost surely, 2^401470409 is an apocalyptic number.

It is an amenable number.

401470409 is a deficient number, since it is larger than the sum of its proper divisors (1).

401470409 is an equidigital number, since it uses as much as digits as its factorization.

401470409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 401470409 is about 20036.7265040974. The cubic root of 401470409 is about 737.7080345419.

The spelling of 401470409 in words is "four hundred one million, four hundred seventy thousand, four hundred nine".