401403307 has 2 divisors, whose sum is σ = 401403308. Its totient is φ = 401403306.

The previous prime is 401403281. The next prime is 401403347. The reversal of 401403307 is 703304104.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 401403307 - 2¹⁹ = 400879019 is a prime.

It is a super-2 number, since 2×401403307² = 322249229741072498, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (401403347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200701653 + 200701654.

It is an arithmetic number, because the mean of its divisors is an integer number (200701654).

Almost surely, 2^401403307 is an apocalyptic number.

401403307 is a deficient number, since it is larger than the sum of its proper divisors (1).

401403307 is an equidigital number, since it uses as much as digits as its factorization.

401403307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 401403307 is about 20035.0519590042. The cubic root of 401403307 is about 737.6669319337. Note that the first 3 decimals are identical.

The spelling of 401403307 in words is "four hundred one million, four hundred three thousand, three hundred seven".