442025447 has 2 divisors, whose sum is σ = 442025448. Its totient is φ = 442025446.

The previous prime is 442025429. The next prime is 442025489. The reversal of 442025447 is 744520244.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 442025447 - 2⁶ = 442025383 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442027447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221012723 + 221012724.

It is an arithmetic number, because the mean of its divisors is an integer number (221012724).

Almost surely, 2^442025447 is an apocalyptic number.

442025447 is a deficient number, since it is larger than the sum of its proper divisors (1).

442025447 is an equidigital number, since it uses as much as digits as its factorization.

442025447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35840, while the sum is 32.

The square root of 442025447 is about 21024.4012280968. The cubic root of 442025447 is about 761.7557784506.

The spelling of 442025447 in words is "four hundred forty-two million, twenty-five thousand, four hundred forty-seven".