851353340 has 12 divisors (see below), whose sum is σ = 1787842056. Its totient is φ = 340541328.

The previous prime is 851353339. The next prime is 851353343. The reversal of 851353340 is 43353158.

It is a junction number, because it is equal to n+sod(n) for n = 851353297 and 851353306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (851353343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21283814 + ... + 21283853.

It is an arithmetic number, because the mean of its divisors is an integer number (148986838).

Almost surely, 2^851353340 is an apocalyptic number.

It is an amenable number.

851353340 is an abundant number, since it is smaller than the sum of its proper divisors (936488716).

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

851353340 is a wasteful number, since it uses less digits than its factorization.

851353340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42567676 (or 42567674 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 851353340 is about 29177.9598327231. The cubic root of 851353340 is about 947.7707062937.

The spelling of 851353340 in words is "eight hundred fifty-one million, three hundred fifty-three thousand, three hundred forty".