68533452 has 120 divisors (see below), whose sum is σ = 197222256. Its totient is φ = 20621952.

The previous prime is 68533447. The next prime is 68533457. The reversal of 68533452 is 25433586.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (68533447) and next prime (68533457).

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

It is not an unprimeable number, because it can be changed into a prime (68533457) by changing a digit.

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, 223083 + ... + 223389.

Almost surely, 2^68533452 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 68533452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98611128).

68533452 is an abundant number, since it is smaller than the sum of its proper divisors (128688804).

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

68533452 is a wasteful number, since it uses less digits than its factorization.

68533452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389 (or 378 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The square root of 68533452 is about 8278.4933411823. The cubic root of 68533452 is about 409.2300680514.

The spelling of 68533452 in words is "sixty-eight million, five hundred thirty-three thousand, four hundred fifty-two".