851440132 has 12 divisors (see below), whose sum is σ = 1490229580. Its totient is φ = 425660256.

The previous prime is 851440097. The next prime is 851440147. The reversal of 851440132 is 231044158.

It can be written as a sum of positive squares in 2 ways, for example, as 814303296 + 37136836 = 28536^2 + 6094^2 .

It is a super-3 number, since 3×851440132³ (a number of 28 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 851440132.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37594 + ... + 55822.

Almost surely, 2^851440132 is an apocalyptic number.

It is an amenable number.

851440132 is a deficient number, since it is larger than the sum of its proper divisors (638789448).

851440132 is a wasteful number, since it uses less digits than its factorization.

851440132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29910 (or 29908 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 851440132 is about 29179.4470818074. The cubic root of 851440132 is about 947.8029123184.

The spelling of 851440132 in words is "eight hundred fifty-one million, four hundred forty thousand, one hundred thirty-two".