718871436 has 60 divisors (see below), whose sum is σ = 1914775632. Its totient is φ = 235096992.

The previous prime is 718871411. The next prime is 718871449. The reversal of 718871436 is 634178817.

718871436 is a `hidden beast` number, since 71 + 88 + 71 + 436 = 666.

718871436 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×718871436² = 1033552282993404192, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 718871391 and 718871400.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3760 + ... + 38103.

Almost surely, 2^718871436 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 718871436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (957387816).

718871436 is an abundant number, since it is smaller than the sum of its proper divisors (1195904196).

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

718871436 is a wasteful number, since it uses less digits than its factorization.

718871436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41932 (or 41921 counting only the distinct ones).

The product of its digits is 225792, while the sum is 45.

The square root of 718871436 is about 26811.7779343333. Note that the first 3 decimals coincide. The cubic root of 718871436 is about 895.8124125655.

The spelling of 718871436 in words is "seven hundred eighteen million, eight hundred seventy-one thousand, four hundred thirty-six".