68446512 has 160 divisors (see below), whose sum is σ = 214272000. Its totient is φ = 20839680.

The previous prime is 68446451. The next prime is 68446513. The reversal of 68446512 is 21564486.

It is a super-2 number, since 2×68446512² = 9369850009932288, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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 (68446513) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 254314 + ... + 254582.

It is an arithmetic number, because the mean of its divisors is an integer number (1339200).

Almost surely, 2^68446512 is an apocalyptic number.

68446512 is a gapful number since it is divisible by the number (62) 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 68446512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107136000).

68446512 is an abundant number, since it is smaller than the sum of its proper divisors (145825488).

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

68446512 is a wasteful number, since it uses less digits than its factorization.

68446512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336 (or 324 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 68446512 is about 8273.2407193312. The cubic root of 68446512 is about 409.0569481303.

The spelling of 68446512 in words is "sixty-eight million, four hundred forty-six thousand, five hundred twelve".