840620226 has 16 divisors (see below), whose sum is σ = 1681694784. Its totient is φ = 280131024.

The previous prime is 840620203. The next prime is 840620237. The reversal of 840620226 is 622026048.

It is a junction number, because it is equal to n+sod(n) for n = 840620193 and 840620202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8091 + ... + 41793.

It is an arithmetic number, because the mean of its divisors is an integer number (105105924).

Almost surely, 2^840620226 is an apocalyptic number.

840620226 is an abundant number, since it is smaller than the sum of its proper divisors (841074558).

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

840620226 is a wasteful number, since it uses less digits than its factorization.

840620226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37865.

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 840620226 is about 28993.4514330392. The cubic root of 840620226 is about 943.7709640476.

The spelling of 840620226 in words is "eight hundred forty million, six hundred twenty thousand, two hundred twenty-six".