851843448 has 48 divisors (see below), whose sum is σ = 2386636200. Its totient is φ = 274155840.

The previous prime is 851843441. The next prime is 851843449. The reversal of 851843448 is 844348158.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (851843441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 201898 + ... + 206073.

Almost surely, 2^851843448 is an apocalyptic number.

It is an amenable number.

851843448 is an abundant number, since it is smaller than the sum of its proper divisors (1534792752).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

851843448 is a wasteful number, since it uses less digits than its factorization.

851843448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408012 (or 408005 counting only the distinct ones).

The product of its digits is 491520, while the sum is 45.

The square root of 851843448 is about 29186.3572238812. The cubic root of 851843448 is about 947.9525426224.

The spelling of 851843448 in words is "eight hundred fifty-one million, eight hundred forty-three thousand, four hundred forty-eight".