68432760 has 144 divisors (see below), whose sum is σ = 244618920. Its totient is φ = 16579200.

The previous prime is 68432719. The next prime is 68432761. The reversal of 68432760 is 6723486.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68432761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 42775 + ... + 44345.

Almost surely, 2^68432760 is an apocalyptic number.

68432760 is a gapful number since it is divisible by the number (60) 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 68432760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122309460).

68432760 is an abundant number, since it is smaller than the sum of its proper divisors (176186160).

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

68432760 is a wasteful number, since it uses less digits than its factorization.

68432760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1610 (or 1592 counting only the distinct ones).

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

The square root of 68432760 is about 8272.4095643289. The cubic root of 68432760 is about 409.0295509322.

The spelling of 68432760 in words is "sixty-eight million, four hundred thirty-two thousand, seven hundred sixty".