442291033 has 2 divisors, whose sum is σ = 442291034. Its totient is φ = 442291032.

The previous prime is 442290973. The next prime is 442291049. The reversal of 442291033 is 330192244.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 301821129 + 140469904 = 17373^2 + 11852^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-442291033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 442290992 and 442291010.

It is not a weakly prime, because it can be changed into another prime (442291433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221145516 + 221145517.

It is an arithmetic number, because the mean of its divisors is an integer number (221145517).

Almost surely, 2^442291033 is an apocalyptic number.

It is an amenable number.

442291033 is a deficient number, since it is larger than the sum of its proper divisors (1).

442291033 is an equidigital number, since it uses as much as digits as its factorization.

442291033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 442291033 is about 21030.7164167082. The cubic root of 442291033 is about 761.9083120254.

The spelling of 442291033 in words is "four hundred forty-two million, two hundred ninety-one thousand, thirty-three".