851755040 has 24 divisors (see below), whose sum is σ = 2012271660. Its totient is φ = 340701952.

The previous prime is 851754949. The next prime is 851755043. The reversal of 851755040 is 40557158.

It can be written as a sum of positive squares in 2 ways, for example, as 834747664 + 17007376 = 28892^2 + 4124^2 .

It is not an unprimeable number, because it can be changed into a prime (851755043) 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, 2661575 + ... + 2661894.

Almost surely, 2^851755040 is an apocalyptic number.

851755040 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

851755040 is an abundant number, since it is smaller than the sum of its proper divisors (1160516620).

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

851755040 is a wasteful number, since it uses less digits than its factorization.

851755040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5323484 (or 5323476 counting only the distinct ones).

The product of its (nonzero) digits is 28000, while the sum is 35.

The square root of 851755040 is about 29184.8426413438. The cubic root of 851755040 is about 947.9197472819.

The spelling of 851755040 in words is "eight hundred fifty-one million, seven hundred fifty-five thousand, forty".