68706432 has 192 divisors, whose sum is σ = 215872800. Its totient is φ = 20901888.

The previous prime is 68706427. The next prime is 68706461. The reversal of 68706432 is 23460786.

68706432 is a `hidden beast` number, since 6 + 8 + 7 + 0 + 643 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 941148 + ... + 941220.

Almost surely, 2^68706432 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 68706432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107936400).

68706432 is an abundant number, since it is smaller than the sum of its proper divisors (147166368).

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

68706432 is a wasteful number, since it uses less digits than its factorization.

68706432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155 (or 140 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 68706432 is about 8288.9343102717. The cubic root of 68706432 is about 409.5740807980.

The spelling of 68706432 in words is "sixty-eight million, seven hundred six thousand, four hundred thirty-two".