1418729856 has 32 divisors (see below), whose sum is σ = 3768502200. Its totient is φ = 472909824.

The previous prime is 1418729843. The next prime is 1418729863. The reversal of 1418729856 is 6589278141.

It is a tau number, because it is divible by the number of its divisors (32).

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 1418729799 and 1418729808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1846921 + ... + 1847688.

Almost surely, 2^1418729856 is an apocalyptic number.

1418729856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1418729856 is an abundant number, since it is smaller than the sum of its proper divisors (2349772344).

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

1418729856 is an equidigital number, since it uses as much as digits as its factorization.

1418729856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3694626 (or 3694614 counting only the distinct ones).

The product of its digits is 967680, while the sum is 51.

The square root of 1418729856 is about 37666.0305315015. The cubic root of 1418729856 is about 1123.6556401727.

The spelling of 1418729856 in words is "one billion, four hundred eighteen million, seven hundred twenty-nine thousand, eight hundred fifty-six".