405455233 has 2 divisors, whose sum is σ = 405455234. Its totient is φ = 405455232.

The previous prime is 405455179. The next prime is 405455243. The reversal of 405455233 is 332554504.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 362788209 + 42667024 = 19047^2 + 6532^2 .

It is a cyclic number.

It is not a de Polignac number, because 405455233 - 2¹³ = 405447041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 405455195 and 405455204.

It is not a weakly prime, because it can be changed into another prime (405455243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202727616 + 202727617.

It is an arithmetic number, because the mean of its divisors is an integer number (202727617).

Almost surely, 2^405455233 is an apocalyptic number.

It is an amenable number.

405455233 is a deficient number, since it is larger than the sum of its proper divisors (1).

405455233 is an equidigital number, since it uses as much as digits as its factorization.

405455233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36000, while the sum is 31.

The square root of 405455233 is about 20135.9189758004. The cubic root of 405455233 is about 740.1407286530.

The spelling of 405455233 in words is "four hundred five million, four hundred fifty-five thousand, two hundred thirty-three".