718422500 has 120 divisors (see below), whose sum is σ = 1656894624. Its totient is φ = 272160000.

The previous prime is 718422487. The next prime is 718422511. The reversal of 718422500 is 5224817.

It is a super-2 number, since 2×718422500² = 1032261777012500000, which contains 22 as substring.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 4407419 + ... + 4407581.

Almost surely, 2^718422500 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 718422500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (828447312).

718422500 is an abundant number, since it is smaller than the sum of its proper divisors (938472124).

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

718422500 is a wasteful number, since it uses less digits than its factorization.

718422500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271 (or 254 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 718422500 is about 26803.4046344863. The cubic root of 718422500 is about 895.6258951220.

The spelling of 718422500 in words is "seven hundred eighteen million, four hundred twenty-two thousand, five hundred".