68475456 has 336 divisors, whose sum is σ = 252959616. Its totient is φ = 17915904.

The previous prime is 68475437. The next prime is 68475457. The reversal of 68475456 is 65457486.

68475456 is a `hidden beast` number, since 68 + 47 + 545 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (336).

It is not an unprimeable number, because it can be changed into a prime (68475457) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1850670 + ... + 1850706.

It is an arithmetic number, because the mean of its divisors is an integer number (752856).

Almost surely, 2^68475456 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 68475456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126479808).

68475456 is an abundant number, since it is smaller than the sum of its proper divisors (184484160).

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

68475456 is a wasteful number, since it uses less digits than its factorization.

68475456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88 (or 66 counting only the distinct ones).

The product of its digits is 806400, while the sum is 45.

The square root of 68475456 is about 8274.9897885133. The cubic root of 68475456 is about 409.1145993554.

The spelling of 68475456 in words is "sixty-eight million, four hundred seventy-five thousand, four hundred fifty-six".