1415806818 has 16 divisors (see below), whose sum is σ = 2998179360. Its totient is φ = 444174656.

The previous prime is 1415806807. The next prime is 1415806823. The reversal of 1415806818 is 8186085141.

It is a self number, because there is not a number n which added to its sum of digits gives 1415806818.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6940128 + ... + 6940331.

It is an arithmetic number, because the mean of its divisors is an integer number (187386210).

Almost surely, 2^1415806818 is an apocalyptic number.

1415806818 is an abundant number, since it is smaller than the sum of its proper divisors (1582372542).

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

1415806818 is a wasteful number, since it uses less digits than its factorization.

1415806818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13880481.

The product of its (nonzero) digits is 61440, while the sum is 42.

The square root of 1415806818 is about 37627.2084800348. The cubic root of 1415806818 is about 1122.8834127220.

The spelling of 1415806818 in words is "one billion, four hundred fifteen million, eight hundred six thousand, eight hundred eighteen".