68019330 has 64 divisors (see below), whose sum is σ = 168376320. Its totient is φ = 17578176.

The previous prime is 68019317. The next prime is 68019337. The reversal of 68019330 is 3391086.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (68019337) 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, 146679 + ... + 147141.

It is an arithmetic number, because the mean of its divisors is an integer number (2630880).

Almost surely, 2^68019330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68019330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84188160).

68019330 is an abundant number, since it is smaller than the sum of its proper divisors (100356990).

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

68019330 is a wasteful number, since it uses less digits than its factorization.

68019330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 68019330 is about 8247.3832213618. The cubic root of 68019330 is about 408.2041822105.

The spelling of 68019330 in words is "sixty-eight million, nineteen thousand, three hundred thirty".