718405652 has 24 divisors (see below), whose sum is σ = 1338540840. Its totient is φ = 336199680.

The previous prime is 718405651. The next prime is 718405663. The reversal of 718405652 is 256504817.

It can be written as a sum of positive squares in 4 ways, for example, as 34269316 + 684136336 = 5854^2 + 26156^2 .

It is a super-2 number, since 2×718405652² = 1032213361651090208, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (718405651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16877 + ... + 41492.

It is an arithmetic number, because the mean of its divisors is an integer number (55772535).

Almost surely, 2^718405652 is an apocalyptic number.

It is an amenable number.

718405652 is a deficient number, since it is larger than the sum of its proper divisors (620135188).

718405652 is a wasteful number, since it uses less digits than its factorization.

718405652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58571 (or 58569 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 38.

The square root of 718405652 is about 26803.0903442122. The cubic root of 718405652 is about 895.6188938458.

The spelling of 718405652 in words is "seven hundred eighteen million, four hundred five thousand, six hundred fifty-two".