401814407 has 2 divisors, whose sum is σ = 401814408. Its totient is φ = 401814406.

The previous prime is 401814353. The next prime is 401814481. The reversal of 401814407 is 704418104.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 401814407 - 2⁸ = 401814151 is a prime.

It is a super-2 number, since 2×401814407² = 322909635345523298, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 401814407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401814107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200907203 + 200907204.

It is an arithmetic number, because the mean of its divisors is an integer number (200907204).

Almost surely, 2^401814407 is an apocalyptic number.

401814407 is a deficient number, since it is larger than the sum of its proper divisors (1).

401814407 is an equidigital number, since it uses as much as digits as its factorization.

401814407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3584, while the sum is 29.

The square root of 401814407 is about 20045.3088526967. The cubic root of 401814407 is about 737.9186749251.

The spelling of 401814407 in words is "four hundred one million, eight hundred fourteen thousand, four hundred seven".