716481540 has 108 divisors (see below), whose sum is σ = 2251329444. Its totient is φ = 184434432.

The previous prime is 716481499. The next prime is 716481551. The reversal of 716481540 is 45184617.

It is a happy number.

716481540 is a `hidden beast` number, since 7 + 1 + 648 + 1 + 5 + 4 + 0 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 34644996 + 681836544 = 5886^2 + 26112^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 716481495 and 716481504.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 149014 + ... + 153746.

It is an arithmetic number, because the mean of its divisors is an integer number (20845643).

Almost surely, 2^716481540 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 716481540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1125664722).

716481540 is an abundant number, since it is smaller than the sum of its proper divisors (1534847904).

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

716481540 is a wasteful number, since it uses less digits than its factorization.

716481540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4806 (or 4772 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 716481540 is about 26767.1728055094. The cubic root of 716481540 is about 894.8185976930.

The spelling of 716481540 in words is "seven hundred sixteen million, four hundred eighty-one thousand, five hundred forty".