840620022 has 32 divisors (see below), whose sum is σ = 1838108160. Its totient is φ = 254173920.

The previous prime is 840620017. The next prime is 840620069. The reversal of 840620022 is 220026048.

It is a junction number, because it is equal to n+sod(n) for n = 840619974 and 840620001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16804 + ... + 44312.

It is an arithmetic number, because the mean of its divisors is an integer number (57440880).

Almost surely, 2^840620022 is an apocalyptic number.

840620022 is an abundant number, since it is smaller than the sum of its proper divisors (997488138).

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

840620022 is a wasteful number, since it uses less digits than its factorization.

840620022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27988.

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 840620022 is about 28993.4479150031. The cubic root of 840620022 is about 943.7708877034.

The spelling of 840620022 in words is "eight hundred forty million, six hundred twenty thousand, twenty-two".