718685448 has 64 divisors (see below), whose sum is σ = 1937510400. Its totient is φ = 220838400.

The previous prime is 718685437. The next prime is 718685449. The reversal of 718685448 is 844586817.

It is a self number, because there is not a number n which added to its sum of digits gives 718685448.

It is not an unprimeable number, because it can be changed into a prime (718685449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 398148 + ... + 399948.

It is an arithmetic number, because the mean of its divisors is an integer number (30273600).

Almost surely, 2^718685448 is an apocalyptic number.

718685448 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is an amenable number.

718685448 is an abundant number, since it is smaller than the sum of its proper divisors (1218824952).

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

718685448 is a wasteful number, since it uses less digits than its factorization.

718685448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3102 (or 3098 counting only the distinct ones).

The product of its digits is 1720320, while the sum is 51.

The square root of 718685448 is about 26808.3093088691. The cubic root of 718685448 is about 895.7351503823.

The spelling of 718685448 in words is "seven hundred eighteen million, six hundred eighty-five thousand, four hundred forty-eight".