1816415832 has 64 divisors (see below), whose sum is σ = 5661561600. Its totient is φ = 471795840.

The previous prime is 1816415773. The next prime is 1816415851. The reversal of 1816415832 is 2385146181.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 489607 + ... + 493302.

It is an arithmetic number, because the mean of its divisors is an integer number (88461900).

Almost surely, 2^1816415832 is an apocalyptic number.

1816415832 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1816415832 is an abundant number, since it is smaller than the sum of its proper divisors (3845145768).

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

1816415832 is a wasteful number, since it uses less digits than its factorization.

1816415832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 982936 (or 982932 counting only the distinct ones).

The product of its digits is 46080, while the sum is 39.

The square root of 1816415832 is about 42619.4302167450. The cubic root of 1816415832 is about 1220.1271550707.

The spelling of 1816415832 in words is "one billion, eight hundred sixteen million, four hundred fifteen thousand, eight hundred thirty-two".