840097386 has 32 divisors (see below), whose sum is σ = 1873513920. Its totient is φ = 279037872.

The previous prime is 840097373. The next prime is 840097387. The reversal of 840097386 is 683790048.

It is a happy number.

840097386 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (840097387) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12205 + ... + 42768.

It is an arithmetic number, because the mean of its divisors is an integer number (58547310).

Almost surely, 2^840097386 is an apocalyptic number.

840097386 is an abundant number, since it is smaller than the sum of its proper divisors (1033416534).

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

840097386 is a wasteful number, since it uses less digits than its factorization.

840097386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55267 (or 55261 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 840097386 is about 28984.4335118008. The cubic root of 840097386 is about 943.5752579357.

The spelling of 840097386 in words is "eight hundred forty million, ninety-seven thousand, three hundred eighty-six".