442094657 has 4 divisors (see below), whose sum is σ = 442136880. Its totient is φ = 442052436.

The previous prime is 442094623. The next prime is 442094671. The reversal of 442094657 is 756490244.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 442094657 - 2⁶ = 442094593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442094617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7718 + ... + 30720.

It is an arithmetic number, because the mean of its divisors is an integer number (110534220).

Almost surely, 2^442094657 is an apocalyptic number.

It is an amenable number.

442094657 is a deficient number, since it is larger than the sum of its proper divisors (42223).

442094657 is a wasteful number, since it uses less digits than its factorization.

442094657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42222.

The product of its (nonzero) digits is 241920, while the sum is 41.

The square root of 442094657 is about 21026.0471082893. The cubic root of 442094657 is about 761.7955336023.

The spelling of 442094657 in words is "four hundred forty-two million, ninety-four thousand, six hundred fifty-seven".