850431264 has 48 divisors (see below), whose sum is σ = 2309368320. Its totient is φ = 273701120.

The previous prime is 850431259. The next prime is 850431299. The reversal of 850431264 is 462134058.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149952 + ... + 155519.

It is an arithmetic number, because the mean of its divisors is an integer number (48111840).

Almost surely, 2^850431264 is an apocalyptic number.

It is an amenable number.

850431264 is an abundant number, since it is smaller than the sum of its proper divisors (1458937056).

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

850431264 is a wasteful number, since it uses less digits than its factorization.

850431264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305513 (or 305505 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 850431264 is about 29162.1546529059. The cubic root of 850431264 is about 947.4284150753.

The spelling of 850431264 in words is "eight hundred fifty million, four hundred thirty-one thousand, two hundred sixty-four".