68532464 has 120 divisors (see below), whose sum is σ = 180092640. Its totient is φ = 24583680.

The previous prime is 68532461. The next prime is 68532467. The reversal of 68532464 is 46423586.

It is an interprime number because it is at equal distance from previous prime (68532461) and next prime (68532467).

It is a super-2 number, since 2×68532464² = 9393397243822592, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68532461) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 175982 + ... + 176370.

It is an arithmetic number, because the mean of its divisors is an integer number (1500772).

Almost surely, 2^68532464 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 68532464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90046320).

68532464 is an abundant number, since it is smaller than the sum of its proper divisors (111560176).

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

68532464 is a wasteful number, since it uses less digits than its factorization.

68532464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439 (or 422 counting only the distinct ones).

The product of its digits is 138240, while the sum is 38.

The square root of 68532464 is about 8278.4336682732. The cubic root of 68532464 is about 409.2281015117.

The spelling of 68532464 in words is "sixty-eight million, five hundred thirty-two thousand, four hundred sixty-four".