442513327 has 2 divisors, whose sum is σ = 442513328. Its totient is φ = 442513326.

The previous prime is 442513289. The next prime is 442513343. The reversal of 442513327 is 723315244.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 442513327 - 2²⁷ = 308295599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442513397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221256663 + 221256664.

It is an arithmetic number, because the mean of its divisors is an integer number (221256664).

Almost surely, 2^442513327 is an apocalyptic number.

442513327 is a deficient number, since it is larger than the sum of its proper divisors (1).

442513327 is an equidigital number, since it uses as much as digits as its factorization.

442513327 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20160, while the sum is 31.

The square root of 442513327 is about 21036.0007368321. Note that the first 3 decimals coincide. The cubic root of 442513327 is about 762.0359348402.

Subtracting from 442513327 its sum of digits (31), we obtain a square (442513296 = 21036²).

The spelling of 442513327 in words is "four hundred forty-two million, five hundred thirteen thousand, three hundred twenty-seven".