840925800 has 576 divisors, whose sum is σ = 3469152960. Its totient is φ = 188179200.

The previous prime is 840925783. The next prime is 840925831. The reversal of 840925800 is 8529048.

It is a super-2 number, since 2×840925800² = 1414312402211280000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 143 ways as a sum of consecutive naturals, for example, 64686594 + ... + 64686606.

It is an arithmetic number, because the mean of its divisors is an integer number (6022835).

Almost surely, 2^840925800 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 840925800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1734576480).

840925800 is an abundant number, since it is smaller than the sum of its proper divisors (2628227160).

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

840925800 is a wasteful number, since it uses less digits than its factorization.

840925800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77 (or 34 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 840925800 is about 28998.7206614361. The cubic root of 840925800 is about 943.8853069745.

The spelling of 840925800 in words is "eight hundred forty million, nine hundred twenty-five thousand, eight hundred".