406262393 has 2 divisors, whose sum is σ = 406262394. Its totient is φ = 406262392.

The previous prime is 406262387. The next prime is 406262411. The reversal of 406262393 is 393262604.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 311628409 + 94633984 = 17653^2 + 9728^2 .

It is a cyclic number.

It is not a de Polignac number, because 406262393 - 2⁸ = 406262137 is a prime.

It is not a weakly prime, because it can be changed into another prime (406262303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203131196 + 203131197.

It is an arithmetic number, because the mean of its divisors is an integer number (203131197).

Almost surely, 2^406262393 is an apocalyptic number.

It is an amenable number.

406262393 is a deficient number, since it is larger than the sum of its proper divisors (1).

406262393 is an equidigital number, since it uses as much as digits as its factorization.

406262393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 35.

The square root of 406262393 is about 20155.9518008949. The cubic root of 406262393 is about 740.6315481460.

The spelling of 406262393 in words is "four hundred six million, two hundred sixty-two thousand, three hundred ninety-three".