68454500 has 48 divisors (see below), whose sum is σ = 154692720. Its totient is φ = 26432000.

The previous prime is 68454497. The next prime is 68454517. The reversal of 68454500 is 545486.

It can be written as a sum of positive squares in 8 ways, for example, as 20124196 + 48330304 = 4486^2 + 6952^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12140 + ... + 16860.

It is an arithmetic number, because the mean of its divisors is an integer number (3222765).

Almost surely, 2^68454500 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 68454500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77346360).

68454500 is an abundant number, since it is smaller than the sum of its proper divisors (86238220).

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

68454500 is a wasteful number, since it uses less digits than its factorization.

68454500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4769 (or 4757 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

The square root of 68454500 is about 8273.7234664932. The cubic root of 68454500 is about 409.0728604084.

Adding to 68454500 its reverse (545486), we get a palindrome (68999986).

It can be divided in two parts, 6845 and 4500, that multiplied together give a square (30802500 = 5550²).

The spelling of 68454500 in words is "sixty-eight million, four hundred fifty-four thousand, five hundred".