68524544 has 80 divisors (see below), whose sum is σ = 156150720. Its totient is φ = 29793280.

The previous prime is 68524531. The next prime is 68524559. The reversal of 68524544 is 44542586.

It is a super-2 number, since 2×68524544² = 9391226260815872, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 68524498 and 68524507.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2979317 + ... + 2979339.

It is an arithmetic number, because the mean of its divisors is an integer number (1951884).

Almost surely, 2^68524544 is an apocalyptic number.

68524544 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68524544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78075360).

68524544 is an abundant number, since it is smaller than the sum of its proper divisors (87626176).

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

68524544 is an frugal number, since it uses more digits than its factorization.

68524544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98 (or 36 counting only the distinct ones).

The product of its digits is 153600, while the sum is 38.

The square root of 68524544 is about 8277.9553030927. The cubic root of 68524544 is about 409.2123366648.

The spelling of 68524544 in words is "sixty-eight million, five hundred twenty-four thousand, five hundred forty-four".