442364149 has 2 divisors, whose sum is σ = 442364150. Its totient is φ = 442364148.

The previous prime is 442364147. The next prime is 442364161. The reversal of 442364149 is 941463244.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 363474225 + 78889924 = 19065^2 + 8882^2 .

It is a cyclic number.

It is not a de Polignac number, because 442364149 - 2¹ = 442364147 is a prime.

Together with 442364147, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442364147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221182074 + 221182075.

It is an arithmetic number, because the mean of its divisors is an integer number (221182075).

Almost surely, 2^442364149 is an apocalyptic number.

It is an amenable number.

442364149 is a deficient number, since it is larger than the sum of its proper divisors (1).

442364149 is an equidigital number, since it uses as much as digits as its factorization.

442364149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82944, while the sum is 37.

The square root of 442364149 is about 21032.4546594067. The cubic root of 442364149 is about 761.9502938990.

The spelling of 442364149 in words is "four hundred forty-two million, three hundred sixty-four thousand, one hundred forty-nine".