849405494 has 12 divisors (see below), whose sum is σ = 1482126084. Its totient is φ = 364030884.

The previous prime is 849405463. The next prime is 849405503. The reversal of 849405494 is 494504948.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4333604 + ... + 4333799.

It is an arithmetic number, because the mean of its divisors is an integer number (123510507).

Almost surely, 2^849405494 is an apocalyptic number.

849405494 is a deficient number, since it is larger than the sum of its proper divisors (632720590).

849405494 is a wasteful number, since it uses less digits than its factorization.

849405494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8667419 (or 8667412 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 47.

The square root of 849405494 is about 29144.5619970519. The cubic root of 849405494 is about 947.0473399327.

The spelling of 849405494 in words is "eight hundred forty-nine million, four hundred five thousand, four hundred ninety-four".